diff --git a/fix_sync_join.py b/fix_sync_join.py
index e69de29bb..3ae21a68e 100644
--- a/fix_sync_join.py
+++ b/fix_sync_join.py
@@ -0,0 +1,25 @@
+#!/usr/bin/env python3
+
+# Read the file
+with open('libs/sdk-py/langgraph_sdk/client.py', 'r') as f:
+    content = f.read()
+
+# Split into lines for line-specific changes
+lines = content.split('
+
+# Update line 4922 (index 4921) - change return type
+if len(lines) > 4921 and '-> dict:' in lines[4921]:
+    lines[4921] = lines[4921].replace('-> dict:', '-> dict[str, Any]:')
+    print('Updated return type annotation')
+
+# Update line 4931 (index 4930) - change docstring Returns section
+if len(lines) > 4930 and 'None' in lines[4930]:
+    lines[4930] = lines[4930].replace('None', 'dict[str, Any]: The final state values of the thread')
+    print('Updated docstring Returns section')
+
+# Write back to file
+with open('libs/sdk-py/langgraph_sdk/client.py', 'w') as f:
+    f.write('
+
+print('Changes applied successfully')
+