diff --git a/packages/smithy/smithy/pubspec.yaml b/packages/smithy/smithy/pubspec.yaml
index 442ffef41c..c62cd22088 100644
--- a/packages/smithy/smithy/pubspec.yaml
+++ b/packages/smithy/smithy/pubspec.yaml
@@ -31,6 +31,6 @@ dev_dependencies:
   amplify_lints: ">=3.1.1 <3.2.0"
   build_runner: ^2.4.9
   built_value_generator: 8.9.3
-  json_serializable: 6.8.0
+  json_serializable: 6.9.0
   stack_trace: ^1.10.0
   test: ^1.22.1