diff --git a/samples/polyglot/requirements.txt b/samples/polyglot/requirements.txt
index d61d35e..856f0ce 100644
--- a/samples/polyglot/requirements.txt
+++ b/samples/polyglot/requirements.txt
@@ -1,4 +1,4 @@
-protobuf==4.23.1
+protobuf==4.25.8
 temporalio==1.16.0
 types-protobuf==4.23.0.1
 typing_extensions==4.5.0