diff --git a/web/charts/common/pubspec.lock b/web/charts/common/pubspec.lock
index 4a6de1840..9966fb912 100644
--- a/web/charts/common/pubspec.lock
+++ b/web/charts/common/pubspec.lock
@@ -182,7 +182,7 @@ packages:
       name: node_preamble
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.4.5"
+    version: "1.4.6"
   package_config:
     dependency: transitive
     description:
@@ -301,7 +301,7 @@ packages:
       name: string_scanner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.4"
+    version: "1.0.5"
   term_glyph:
     dependency: transitive
     description:
diff --git a/web/charts/example/pubspec.lock b/web/charts/example/pubspec.lock
index 315a6d689..ba1a84395 100644
--- a/web/charts/example/pubspec.lock
+++ b/web/charts/example/pubspec.lock
@@ -49,7 +49,7 @@ packages:
       name: build_config
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.4.0"
+    version: "0.4.1"
   build_daemon:
     dependency: transitive
     description:
@@ -63,7 +63,7 @@ packages:
       name: build_modules
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.4.0"
+    version: "2.4.1"
   build_resolvers:
     dependency: transitive
     description:
@@ -77,14 +77,14 @@ packages:
       name: build_runner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.6.4"
+    version: "1.6.5"
   build_runner_core:
     dependency: transitive
     description:
       name: build_runner_core
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.0.6"
+    version: "3.0.7"
   build_web_compilers:
     dependency: "direct dev"
     description:
@@ -127,6 +127,13 @@ packages:
       relative: true
     source: path
     version: "0.6.0"
+  checked_yaml:
+    dependency: transitive
+    description:
+      name: checked_yaml
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.1"
   code_builder:
     dependency: transitive
     description:
@@ -181,7 +188,7 @@ packages:
     description:
       path: "packages/flutter_web"
       ref: HEAD
-      resolved-ref: "1c1f2dbedd629689f404f509cbd7a9a040e93a72"
+      resolved-ref: "88a6325290b75326c072ae63bf3016e15a08fccc"
       url: "https://github.com/flutter/flutter_web"
     source: git
     version: "0.0.0"
@@ -190,7 +197,7 @@ packages:
     description:
       path: "packages/flutter_web_ui"
       ref: HEAD
-      resolved-ref: "1c1f2dbedd629689f404f509cbd7a9a040e93a72"
+      resolved-ref: "88a6325290b75326c072ae63bf3016e15a08fccc"
       url: "https://github.com/flutter/flutter_web"
     source: git
     version: "0.0.0"
@@ -368,14 +375,14 @@ packages:
       name: quiver
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.3"
+    version: "2.0.4"
   scratch_space:
     dependency: transitive
     description:
       name: scratch_space
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.0.3+2"
+    version: "0.0.4"
   shelf:
     dependency: transitive
     description:
@@ -431,7 +438,7 @@ packages:
       name: string_scanner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.4"
+    version: "1.0.5"
   term_glyph:
     dependency: transitive
     description:
diff --git a/web/charts/flutter/pubspec.lock b/web/charts/flutter/pubspec.lock
index a1ddba626..bd37c86b0 100644
--- a/web/charts/flutter/pubspec.lock
+++ b/web/charts/flutter/pubspec.lock
@@ -76,7 +76,7 @@ packages:
     description:
       path: "packages/flutter_web"
       ref: HEAD
-      resolved-ref: "1c1f2dbedd629689f404f509cbd7a9a040e93a72"
+      resolved-ref: "88a6325290b75326c072ae63bf3016e15a08fccc"
       url: "https://github.com/flutter/flutter_web"
     source: git
     version: "0.0.0"
@@ -85,7 +85,7 @@ packages:
     description:
       path: "packages/flutter_web_test"
       ref: HEAD
-      resolved-ref: "1c1f2dbedd629689f404f509cbd7a9a040e93a72"
+      resolved-ref: "88a6325290b75326c072ae63bf3016e15a08fccc"
       url: "https://github.com/flutter/flutter_web"
     source: git
     version: "0.0.0"
@@ -94,7 +94,7 @@ packages:
     description:
       path: "packages/flutter_web_ui"
       ref: HEAD
-      resolved-ref: "1c1f2dbedd629689f404f509cbd7a9a040e93a72"
+      resolved-ref: "88a6325290b75326c072ae63bf3016e15a08fccc"
       url: "https://github.com/flutter/flutter_web"
     source: git
     version: "0.0.0"
@@ -216,7 +216,7 @@ packages:
       name: node_preamble
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.4.5"
+    version: "1.4.6"
   package_config:
     dependency: transitive
     description:
@@ -265,7 +265,7 @@ packages:
       name: quiver
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.3"
+    version: "2.0.4"
   shelf:
     dependency: transitive
     description:
@@ -342,7 +342,7 @@ packages:
       name: string_scanner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.4"
+    version: "1.0.5"
   term_glyph:
     dependency: transitive
     description:
diff --git a/web/dad_jokes/pubspec.lock b/web/dad_jokes/pubspec.lock
index 4c2ef213e..07974c621 100644
--- a/web/dad_jokes/pubspec.lock
+++ b/web/dad_jokes/pubspec.lock
@@ -49,7 +49,7 @@ packages:
       name: build_config
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.4.0"
+    version: "0.4.1"
   build_daemon:
     dependency: transitive
     description:
@@ -63,7 +63,7 @@ packages:
       name: build_modules
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.4.0"
+    version: "2.4.1"
   build_resolvers:
     dependency: transitive
     description:
@@ -77,14 +77,14 @@ packages:
       name: build_runner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.6.4"
+    version: "1.6.5"
   build_runner_core:
     dependency: transitive
     description:
       name: build_runner_core
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.0.6"
+    version: "3.0.7"
   build_web_compilers:
     dependency: "direct dev"
     description:
@@ -113,6 +113,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.2"
+  checked_yaml:
+    dependency: transitive
+    description:
+      name: checked_yaml
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.1"
   code_builder:
     dependency: transitive
     description:
@@ -167,7 +174,7 @@ packages:
     description:
       path: "packages/flutter_web"
       ref: HEAD
-      resolved-ref: "1c1f2dbedd629689f404f509cbd7a9a040e93a72"
+      resolved-ref: "88a6325290b75326c072ae63bf3016e15a08fccc"
       url: "https://github.com/flutter/flutter_web"
     source: git
     version: "0.0.0"
@@ -176,7 +183,7 @@ packages:
     description:
       path: "packages/flutter_web_ui"
       ref: HEAD
-      resolved-ref: "1c1f2dbedd629689f404f509cbd7a9a040e93a72"
+      resolved-ref: "88a6325290b75326c072ae63bf3016e15a08fccc"
       url: "https://github.com/flutter/flutter_web"
     source: git
     version: "0.0.0"
@@ -354,14 +361,14 @@ packages:
       name: quiver
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.3"
+    version: "2.0.4"
   scratch_space:
     dependency: transitive
     description:
       name: scratch_space
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.0.3+2"
+    version: "0.0.4"
   shelf:
     dependency: transitive
     description:
@@ -417,7 +424,7 @@ packages:
       name: string_scanner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.4"
+    version: "1.0.5"
   term_glyph:
     dependency: transitive
     description:
diff --git a/web/filipino_cuisine/pubspec.lock b/web/filipino_cuisine/pubspec.lock
index 4c2ef213e..07974c621 100644
--- a/web/filipino_cuisine/pubspec.lock
+++ b/web/filipino_cuisine/pubspec.lock
@@ -49,7 +49,7 @@ packages:
       name: build_config
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.4.0"
+    version: "0.4.1"
   build_daemon:
     dependency: transitive
     description:
@@ -63,7 +63,7 @@ packages:
       name: build_modules
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.4.0"
+    version: "2.4.1"
   build_resolvers:
     dependency: transitive
     description:
@@ -77,14 +77,14 @@ packages:
       name: build_runner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.6.4"
+    version: "1.6.5"
   build_runner_core:
     dependency: transitive
     description:
       name: build_runner_core
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.0.6"
+    version: "3.0.7"
   build_web_compilers:
     dependency: "direct dev"
     description:
@@ -113,6 +113,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.2"
+  checked_yaml:
+    dependency: transitive
+    description:
+      name: checked_yaml
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.1"
   code_builder:
     dependency: transitive
     description:
@@ -167,7 +174,7 @@ packages:
     description:
       path: "packages/flutter_web"
       ref: HEAD
-      resolved-ref: "1c1f2dbedd629689f404f509cbd7a9a040e93a72"
+      resolved-ref: "88a6325290b75326c072ae63bf3016e15a08fccc"
       url: "https://github.com/flutter/flutter_web"
     source: git
     version: "0.0.0"
@@ -176,7 +183,7 @@ packages:
     description:
       path: "packages/flutter_web_ui"
       ref: HEAD
-      resolved-ref: "1c1f2dbedd629689f404f509cbd7a9a040e93a72"
+      resolved-ref: "88a6325290b75326c072ae63bf3016e15a08fccc"
       url: "https://github.com/flutter/flutter_web"
     source: git
     version: "0.0.0"
@@ -354,14 +361,14 @@ packages:
       name: quiver
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.3"
+    version: "2.0.4"
   scratch_space:
     dependency: transitive
     description:
       name: scratch_space
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.0.3+2"
+    version: "0.0.4"
   shelf:
     dependency: transitive
     description:
@@ -417,7 +424,7 @@ packages:
       name: string_scanner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.4"
+    version: "1.0.5"
   term_glyph:
     dependency: transitive
     description:
diff --git a/web/gallery/pubspec.lock b/web/gallery/pubspec.lock
index 4aa575549..ce7e1157d 100644
--- a/web/gallery/pubspec.lock
+++ b/web/gallery/pubspec.lock
@@ -56,7 +56,7 @@ packages:
       name: build_config
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.4.0"
+    version: "0.4.1"
   build_daemon:
     dependency: transitive
     description:
@@ -70,7 +70,7 @@ packages:
       name: build_modules
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.4.0"
+    version: "2.4.1"
   build_resolvers:
     dependency: transitive
     description:
@@ -84,14 +84,14 @@ packages:
       name: build_runner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.6.4"
+    version: "1.6.5"
   build_runner_core:
     dependency: transitive
     description:
       name: build_runner_core
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.0.6"
+    version: "3.0.7"
   build_web_compilers:
     dependency: "direct dev"
     description:
@@ -120,6 +120,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.2"
+  checked_yaml:
+    dependency: transitive
+    description:
+      name: checked_yaml
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.1"
   code_builder:
     dependency: transitive
     description:
@@ -174,7 +181,7 @@ packages:
     description:
       path: "packages/flutter_web"
       ref: HEAD
-      resolved-ref: "1c1f2dbedd629689f404f509cbd7a9a040e93a72"
+      resolved-ref: "88a6325290b75326c072ae63bf3016e15a08fccc"
       url: "https://github.com/flutter/flutter_web"
     source: git
     version: "0.0.0"
@@ -183,7 +190,7 @@ packages:
     description:
       path: "packages/flutter_web_test"
       ref: HEAD
-      resolved-ref: "1c1f2dbedd629689f404f509cbd7a9a040e93a72"
+      resolved-ref: "88a6325290b75326c072ae63bf3016e15a08fccc"
       url: "https://github.com/flutter/flutter_web"
     source: git
     version: "0.0.0"
@@ -192,7 +199,7 @@ packages:
     description:
       path: "packages/flutter_web_ui"
       ref: HEAD
-      resolved-ref: "1c1f2dbedd629689f404f509cbd7a9a040e93a72"
+      resolved-ref: "88a6325290b75326c072ae63bf3016e15a08fccc"
       url: "https://github.com/flutter/flutter_web"
     source: git
     version: "0.0.0"
@@ -321,7 +328,7 @@ packages:
       name: node_preamble
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.4.5"
+    version: "1.4.6"
   package_config:
     dependency: transitive
     description:
@@ -384,14 +391,14 @@ packages:
       name: quiver
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.3"
+    version: "2.0.4"
   scratch_space:
     dependency: transitive
     description:
       name: scratch_space
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.0.3+2"
+    version: "0.0.4"
   shelf:
     dependency: transitive
     description:
@@ -468,7 +475,7 @@ packages:
       name: string_scanner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.4"
+    version: "1.0.5"
   term_glyph:
     dependency: transitive
     description:
diff --git a/web/github_dataviz/pubspec.lock b/web/github_dataviz/pubspec.lock
index 92abea048..76051ba3a 100644
--- a/web/github_dataviz/pubspec.lock
+++ b/web/github_dataviz/pubspec.lock
@@ -49,7 +49,7 @@ packages:
       name: build_config
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.4.0"
+    version: "0.4.1"
   build_daemon:
     dependency: transitive
     description:
@@ -63,7 +63,7 @@ packages:
       name: build_modules
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.4.0"
+    version: "2.4.1"
   build_resolvers:
     dependency: transitive
     description:
@@ -77,14 +77,14 @@ packages:
       name: build_runner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.6.4"
+    version: "1.6.5"
   build_runner_core:
     dependency: transitive
     description:
       name: build_runner_core
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.0.6"
+    version: "3.0.7"
   build_web_compilers:
     dependency: "direct dev"
     description:
@@ -113,6 +113,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.2"
+  checked_yaml:
+    dependency: transitive
+    description:
+      name: checked_yaml
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.1"
   code_builder:
     dependency: transitive
     description:
@@ -167,7 +174,7 @@ packages:
     description:
       path: "packages/flutter_web"
       ref: HEAD
-      resolved-ref: "1c1f2dbedd629689f404f509cbd7a9a040e93a72"
+      resolved-ref: "88a6325290b75326c072ae63bf3016e15a08fccc"
       url: "https://github.com/flutter/flutter_web"
     source: git
     version: "0.0.0"
@@ -176,7 +183,7 @@ packages:
     description:
       path: "packages/flutter_web_ui"
       ref: HEAD
-      resolved-ref: "1c1f2dbedd629689f404f509cbd7a9a040e93a72"
+      resolved-ref: "88a6325290b75326c072ae63bf3016e15a08fccc"
       url: "https://github.com/flutter/flutter_web"
     source: git
     version: "0.0.0"
@@ -354,14 +361,14 @@ packages:
       name: quiver
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.3"
+    version: "2.0.4"
   scratch_space:
     dependency: transitive
     description:
       name: scratch_space
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.0.3+2"
+    version: "0.0.4"
   shelf:
     dependency: transitive
     description:
@@ -417,7 +424,7 @@ packages:
       name: string_scanner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.4"
+    version: "1.0.5"
   term_glyph:
     dependency: transitive
     description:
diff --git a/web/particle_background/pubspec.lock b/web/particle_background/pubspec.lock
index abfc60e19..ae60194b8 100644
--- a/web/particle_background/pubspec.lock
+++ b/web/particle_background/pubspec.lock
@@ -49,7 +49,7 @@ packages:
       name: build_config
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.4.0"
+    version: "0.4.1"
   build_daemon:
     dependency: transitive
     description:
@@ -63,7 +63,7 @@ packages:
       name: build_modules
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.4.0"
+    version: "2.4.1"
   build_resolvers:
     dependency: transitive
     description:
@@ -77,14 +77,14 @@ packages:
       name: build_runner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.6.4"
+    version: "1.6.5"
   build_runner_core:
     dependency: transitive
     description:
       name: build_runner_core
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.0.6"
+    version: "3.0.7"
   build_web_compilers:
     dependency: "direct dev"
     description:
@@ -113,6 +113,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.2"
+  checked_yaml:
+    dependency: transitive
+    description:
+      name: checked_yaml
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.1"
   code_builder:
     dependency: transitive
     description:
@@ -167,7 +174,7 @@ packages:
     description:
       path: "packages/flutter_web"
       ref: HEAD
-      resolved-ref: "1c1f2dbedd629689f404f509cbd7a9a040e93a72"
+      resolved-ref: "88a6325290b75326c072ae63bf3016e15a08fccc"
       url: "https://github.com/flutter/flutter_web"
     source: git
     version: "0.0.0"
@@ -176,7 +183,7 @@ packages:
     description:
       path: "packages/flutter_web_ui"
       ref: HEAD
-      resolved-ref: "1c1f2dbedd629689f404f509cbd7a9a040e93a72"
+      resolved-ref: "88a6325290b75326c072ae63bf3016e15a08fccc"
       url: "https://github.com/flutter/flutter_web"
     source: git
     version: "0.0.0"
@@ -354,14 +361,14 @@ packages:
       name: quiver
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.3"
+    version: "2.0.4"
   scratch_space:
     dependency: transitive
     description:
       name: scratch_space
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.0.3+2"
+    version: "0.0.4"
   shelf:
     dependency: transitive
     description:
@@ -417,7 +424,7 @@ packages:
       name: string_scanner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.4"
+    version: "1.0.5"
   term_glyph:
     dependency: transitive
     description:
diff --git a/web/slide_puzzle/pubspec.lock b/web/slide_puzzle/pubspec.lock
index e3be8ead1..53677fd3a 100644
--- a/web/slide_puzzle/pubspec.lock
+++ b/web/slide_puzzle/pubspec.lock
@@ -49,7 +49,7 @@ packages:
       name: build_config
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.4.0"
+    version: "0.4.1"
   build_daemon:
     dependency: transitive
     description:
@@ -63,7 +63,7 @@ packages:
       name: build_modules
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.4.0"
+    version: "2.4.1"
   build_resolvers:
     dependency: transitive
     description:
@@ -77,14 +77,14 @@ packages:
       name: build_runner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.6.4"
+    version: "1.6.5"
   build_runner_core:
     dependency: transitive
     description:
       name: build_runner_core
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.0.6"
+    version: "3.0.7"
   build_web_compilers:
     dependency: "direct dev"
     description:
@@ -113,6 +113,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.2"
+  checked_yaml:
+    dependency: transitive
+    description:
+      name: checked_yaml
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.1"
   code_builder:
     dependency: transitive
     description:
@@ -167,7 +174,7 @@ packages:
     description:
       path: "packages/flutter_web"
       ref: HEAD
-      resolved-ref: "1c1f2dbedd629689f404f509cbd7a9a040e93a72"
+      resolved-ref: "88a6325290b75326c072ae63bf3016e15a08fccc"
       url: "https://github.com/flutter/flutter_web"
     source: git
     version: "0.0.0"
@@ -176,7 +183,7 @@ packages:
     description:
       path: "packages/flutter_web_ui"
       ref: HEAD
-      resolved-ref: "1c1f2dbedd629689f404f509cbd7a9a040e93a72"
+      resolved-ref: "88a6325290b75326c072ae63bf3016e15a08fccc"
       url: "https://github.com/flutter/flutter_web"
     source: git
     version: "0.0.0"
@@ -363,14 +370,14 @@ packages:
       name: quiver
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.3"
+    version: "2.0.4"
   scratch_space:
     dependency: transitive
     description:
       name: scratch_space
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.0.3+2"
+    version: "0.0.4"
   shelf:
     dependency: transitive
     description:
@@ -426,7 +433,7 @@ packages:
       name: string_scanner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.4"
+    version: "1.0.5"
   term_glyph:
     dependency: transitive
     description:
diff --git a/web/spinning_square/pubspec.lock b/web/spinning_square/pubspec.lock
index 92abea048..76051ba3a 100644
--- a/web/spinning_square/pubspec.lock
+++ b/web/spinning_square/pubspec.lock
@@ -49,7 +49,7 @@ packages:
       name: build_config
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.4.0"
+    version: "0.4.1"
   build_daemon:
     dependency: transitive
     description:
@@ -63,7 +63,7 @@ packages:
       name: build_modules
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.4.0"
+    version: "2.4.1"
   build_resolvers:
     dependency: transitive
     description:
@@ -77,14 +77,14 @@ packages:
       name: build_runner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.6.4"
+    version: "1.6.5"
   build_runner_core:
     dependency: transitive
     description:
       name: build_runner_core
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.0.6"
+    version: "3.0.7"
   build_web_compilers:
     dependency: "direct dev"
     description:
@@ -113,6 +113,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.2"
+  checked_yaml:
+    dependency: transitive
+    description:
+      name: checked_yaml
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.1"
   code_builder:
     dependency: transitive
     description:
@@ -167,7 +174,7 @@ packages:
     description:
       path: "packages/flutter_web"
       ref: HEAD
-      resolved-ref: "1c1f2dbedd629689f404f509cbd7a9a040e93a72"
+      resolved-ref: "88a6325290b75326c072ae63bf3016e15a08fccc"
       url: "https://github.com/flutter/flutter_web"
     source: git
     version: "0.0.0"
@@ -176,7 +183,7 @@ packages:
     description:
       path: "packages/flutter_web_ui"
       ref: HEAD
-      resolved-ref: "1c1f2dbedd629689f404f509cbd7a9a040e93a72"
+      resolved-ref: "88a6325290b75326c072ae63bf3016e15a08fccc"
       url: "https://github.com/flutter/flutter_web"
     source: git
     version: "0.0.0"
@@ -354,14 +361,14 @@ packages:
       name: quiver
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.3"
+    version: "2.0.4"
   scratch_space:
     dependency: transitive
     description:
       name: scratch_space
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.0.3+2"
+    version: "0.0.4"
   shelf:
     dependency: transitive
     description:
@@ -417,7 +424,7 @@ packages:
       name: string_scanner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.4"
+    version: "1.0.5"
   term_glyph:
     dependency: transitive
     description:
diff --git a/web/timeflow/pubspec.lock b/web/timeflow/pubspec.lock
index abfc60e19..ae60194b8 100644
--- a/web/timeflow/pubspec.lock
+++ b/web/timeflow/pubspec.lock
@@ -49,7 +49,7 @@ packages:
       name: build_config
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.4.0"
+    version: "0.4.1"
   build_daemon:
     dependency: transitive
     description:
@@ -63,7 +63,7 @@ packages:
       name: build_modules
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.4.0"
+    version: "2.4.1"
   build_resolvers:
     dependency: transitive
     description:
@@ -77,14 +77,14 @@ packages:
       name: build_runner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.6.4"
+    version: "1.6.5"
   build_runner_core:
     dependency: transitive
     description:
       name: build_runner_core
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.0.6"
+    version: "3.0.7"
   build_web_compilers:
     dependency: "direct dev"
     description:
@@ -113,6 +113,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.2"
+  checked_yaml:
+    dependency: transitive
+    description:
+      name: checked_yaml
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.1"
   code_builder:
     dependency: transitive
     description:
@@ -167,7 +174,7 @@ packages:
     description:
       path: "packages/flutter_web"
       ref: HEAD
-      resolved-ref: "1c1f2dbedd629689f404f509cbd7a9a040e93a72"
+      resolved-ref: "88a6325290b75326c072ae63bf3016e15a08fccc"
       url: "https://github.com/flutter/flutter_web"
     source: git
     version: "0.0.0"
@@ -176,7 +183,7 @@ packages:
     description:
       path: "packages/flutter_web_ui"
       ref: HEAD
-      resolved-ref: "1c1f2dbedd629689f404f509cbd7a9a040e93a72"
+      resolved-ref: "88a6325290b75326c072ae63bf3016e15a08fccc"
       url: "https://github.com/flutter/flutter_web"
     source: git
     version: "0.0.0"
@@ -354,14 +361,14 @@ packages:
       name: quiver
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.3"
+    version: "2.0.4"
   scratch_space:
     dependency: transitive
     description:
       name: scratch_space
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.0.3+2"
+    version: "0.0.4"
   shelf:
     dependency: transitive
     description:
@@ -417,7 +424,7 @@ packages:
       name: string_scanner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.4"
+    version: "1.0.5"
   term_glyph:
     dependency: transitive
     description:
diff --git a/web/vision_challenge/pubspec.lock b/web/vision_challenge/pubspec.lock
index 92abea048..76051ba3a 100644
--- a/web/vision_challenge/pubspec.lock
+++ b/web/vision_challenge/pubspec.lock
@@ -49,7 +49,7 @@ packages:
       name: build_config
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.4.0"
+    version: "0.4.1"
   build_daemon:
     dependency: transitive
     description:
@@ -63,7 +63,7 @@ packages:
       name: build_modules
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.4.0"
+    version: "2.4.1"
   build_resolvers:
     dependency: transitive
     description:
@@ -77,14 +77,14 @@ packages:
       name: build_runner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.6.4"
+    version: "1.6.5"
   build_runner_core:
     dependency: transitive
     description:
       name: build_runner_core
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.0.6"
+    version: "3.0.7"
   build_web_compilers:
     dependency: "direct dev"
     description:
@@ -113,6 +113,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.2"
+  checked_yaml:
+    dependency: transitive
+    description:
+      name: checked_yaml
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.1"
   code_builder:
     dependency: transitive
     description:
@@ -167,7 +174,7 @@ packages:
     description:
       path: "packages/flutter_web"
       ref: HEAD
-      resolved-ref: "1c1f2dbedd629689f404f509cbd7a9a040e93a72"
+      resolved-ref: "88a6325290b75326c072ae63bf3016e15a08fccc"
       url: "https://github.com/flutter/flutter_web"
     source: git
     version: "0.0.0"
@@ -176,7 +183,7 @@ packages:
     description:
       path: "packages/flutter_web_ui"
       ref: HEAD
-      resolved-ref: "1c1f2dbedd629689f404f509cbd7a9a040e93a72"
+      resolved-ref: "88a6325290b75326c072ae63bf3016e15a08fccc"
       url: "https://github.com/flutter/flutter_web"
     source: git
     version: "0.0.0"
@@ -354,14 +361,14 @@ packages:
       name: quiver
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.3"
+    version: "2.0.4"
   scratch_space:
     dependency: transitive
     description:
       name: scratch_space
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.0.3+2"
+    version: "0.0.4"
   shelf:
     dependency: transitive
     description:
@@ -417,7 +424,7 @@ packages:
       name: string_scanner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.4"
+    version: "1.0.5"
   term_glyph:
     dependency: transitive
     description: