diff --git a/CHANGELOG.md b/CHANGELOG.md
index 479a99cf11..f9b3bb8b9a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Svelte changelog
 
-## Unreleased
+## 3.21.0
 
 * Support dimension bindings in cross-origin environments ([#2147](https://github.com/sveltejs/svelte/issues/2147))
 * Fix several related outro bugs ([#3202](https://github.com/sveltejs/svelte/issues/3202), [#3410](https://github.com/sveltejs/svelte/issues/3410), [#3685](https://github.com/sveltejs/svelte/issues/3685), [#4620](https://github.com/sveltejs/svelte/issues/4620), [#4630](https://github.com/sveltejs/svelte/issues/4630))
diff --git a/package-lock.json b/package-lock.json
index 112b58882d..d5adaa34ca 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "svelte",
-  "version": "3.20.1",
+  "version": "3.21.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 2053ebb76f..215a6099e9 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "svelte",
-  "version": "3.20.1",
+  "version": "3.21.0",
   "description": "Cybernetically enhanced web apps",
   "module": "index.mjs",
   "main": "index",