diff --git a/app/build.gradle b/app/build.gradle
index 6886840663..656e841f23 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -225,8 +225,8 @@ configurations.all {
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
 
-    def core_version = "1.3.0-rc01" // 1.4.0-alpha01
-    def appcompat_version = "1.2.0-rc01" // 1.3.0-alpha01
+    def core_version = "1.4.0-alpha01"
+    def appcompat_version = "1.3.0-alpha01"
     def fragment_version = "1.3.0-alpha05"
     def recyclerview_version = "1.2.0-alpha03"
     def coordinatorlayout_version = "1.1.0"