diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3fb268d7c9..f7e8186d00 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,8 @@ Important changes to data models, configuration, and migrations between each
 AppEngine version, listed here to ease deployment and troubleshooting.
 
 ## Next Release (replace with git tag when deployed)
- * Bump runtimeVersion to `2024.12.30`.
+ * Bump runtimeVersion to `2025.01.07`.
+ * Upgraded stable Flutter analysis SDK to `3.27.1`.
  * Upgraded dartdoc to `8.3.1`.
  * Note: removed required flag from `isBlocked` fields. 
  * Note: started deleting `Package.blocked` and `Package.blockedReason`.
diff --git a/Dockerfile.worker b/Dockerfile.worker
index 3f7799cfe5..6465074498 100644
--- a/Dockerfile.worker
+++ b/Dockerfile.worker
@@ -26,7 +26,7 @@ RUN mkdir -p /home/worker/config/flutter-stable
 RUN XDG_CONFIG_HOME=/home/worker/config/dart-stable tool/setup-dart.sh /home/worker/dart/stable 3.6.0
 
 # Setup Flutter SDK into /home/worker/flutter/{stable,preview}/
-RUN XDG_CONFIG_HOME=/home/worker/config/flutter-stable tool/setup-flutter.sh /home/worker/flutter/stable 3.27.0
+RUN XDG_CONFIG_HOME=/home/worker/config/flutter-stable tool/setup-flutter.sh /home/worker/flutter/stable 3.27.1
 
 # Setup webp
 RUN tool/setup-webp.sh /home/worker/bin
diff --git a/app/lib/shared/versions.dart b/app/lib/shared/versions.dart
index 7dfec75374..2d2d674403 100644
--- a/app/lib/shared/versions.dart
+++ b/app/lib/shared/versions.dart
@@ -24,7 +24,7 @@ final RegExp runtimeVersionPattern = RegExp(r'^\d{4}\.\d{2}\.\d{2}$');
 /// when the version switch happens.
 const _acceptedRuntimeVersions = <String>[
   // The current [runtimeVersion].
-  '2024.12.30',
+  '2025.01.07',
   // Fallback runtime versions.
   '2024.12.17',
   '2024.12.11',
@@ -63,7 +63,7 @@ bool shouldGCVersion(String version) =>
 // keep in-sync with SDK version in .mono_repo.yml and Dockerfile
 final String runtimeSdkVersion = '3.6.0';
 final String toolStableDartSdkVersion = '3.6.0';
-final String toolStableFlutterSdkVersion = '3.27.0';
+final String toolStableFlutterSdkVersion = '3.27.1';
 
 final semanticToolStableDartSdkVersion =
     Version.parse(toolStableDartSdkVersion);