diff --git a/DEPS b/DEPS
index cab3ad0200d..9429b4dfb82 100644
--- a/DEPS
+++ b/DEPS
@@ -34,7 +34,7 @@ vars = {
   # Dart is: https://github.com/dart-lang/sdk/blob/master/DEPS.
   # You can use //tools/dart/create_updated_flutter_deps.py to produce
   # updated revision list of existing dependencies.
-  'dart_revision': '2676764792b2170b5f7867600a2144e7493fa950',
+  'dart_revision': '95e11bc2d30f7c1b9c49a4fc97a44c4b32fe66d8',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py
diff --git a/engine/src/flutter/lib/snapshot/BUILD.gn b/engine/src/flutter/lib/snapshot/BUILD.gn
index b4773b65479..4e5e4272a1f 100644
--- a/engine/src/flutter/lib/snapshot/BUILD.gn
+++ b/engine/src/flutter/lib/snapshot/BUILD.gn
@@ -250,7 +250,7 @@ compile_platform("strong_platform") {
   allow_causal_async_stacks = !is_runtime_mode_release
   args = [
     "--enable-experiment=non-nullable",
-    "--nnbd-agnostic",
+    "--nnbd-weak",
     "--target=flutter",
     "-Ddart.vm.product=$is_runtime_mode_release",
     "-Ddart.developer.causal_async_stacks=$allow_causal_async_stacks",