diff --git a/packages/smithy/smithy/pubspec.yaml b/packages/smithy/smithy/pubspec.yaml
index 2e2bdfbdb7..0ccbdaead2 100644
--- a/packages/smithy/smithy/pubspec.yaml
+++ b/packages/smithy/smithy/pubspec.yaml
@@ -31,6 +31,6 @@ dev_dependencies:
   amplify_lints: ">=3.1.3 <3.2.0"
   build_runner: ^2.4.9
   built_value_generator: ^8.10.1
-  json_serializable: ">=6.9.4 <6.10.0"
+  json_serializable: ^6.9.4
   stack_trace: ^1.10.0
   test: ^1.22.1