diff --git a/DEPS b/DEPS
index d4409822067..2c744415345 100644
--- a/DEPS
+++ b/DEPS
@@ -50,8 +50,7 @@ vars = {
   # Checked-in SDK version. The checked-in SDK is a Dart SDK distribution
   # in a cipd package used to run Dart scripts in the build and test
   # infrastructure, which is automatically built on the release commits.
-  # Use a published dev version to support unstable platforms.
-  "sdk_tag": "version:3.2.0-150.0.dev",
+  "sdk_tag": "version:3.2.4",
 
   # co19 is a cipd package automatically generated for each co19 commit.
   # Use tests/co19/update.sh to update this hash.
diff --git a/tools/sdks/README b/tools/sdks/README
index 0f4ce9a060d..838d29365f9 100644
--- a/tools/sdks/README
+++ b/tools/sdks/README
@@ -1,11 +1,8 @@
-This directory contains a stable Dart SDK, which is used to build the
-observatory and to run the test scripts.
+This directory contains a stable Dart SDK, which is used to bootstrap the Dart
+SDK build and to run the test scripts.
 
 The DEPS use CIPD's ${platform} syntax find the right SDK for the platform.
 
-We use the x64 build as the default on Linux, Mac and Windows. Builds for Linux
-on ARM and ARM64 are also provided.
-
 The SDK can be updated to a release commit from dev/beta/stable using:
 
     gclient setdep --var="sdk_tag=git_revision:$commit"