diff --git a/local_agents/function_calling/tool_simulation/requirements.txt b/local_agents/function_calling/tool_simulation/requirements.txt
index 0494076..f40e9b9 100644
--- a/local_agents/function_calling/tool_simulation/requirements.txt
+++ b/local_agents/function_calling/tool_simulation/requirements.txt
@@ -1,5 +1,5 @@
 absl_py==2.2.2
 google-genai==1.15.0
-protobuf==6.31.0
+protobuf==6.31.1
 proto-plus==1.26.1
 tensorflow==2.19.0
\ No newline at end of file