diff --git a/sdks/python/container/py313/base_image_requirements.txt b/sdks/python/container/py313/base_image_requirements.txt
index 6a919da4bc93..2e70c6977fe6 100644
--- a/sdks/python/container/py313/base_image_requirements.txt
+++ b/sdks/python/container/py313/base_image_requirements.txt
@@ -136,7 +136,7 @@ pip==25.3
 pluggy==1.6.0
 propcache==0.4.1
 proto-plus==1.27.0
-protobuf==6.33.4
+protobuf==6.33.5
 psycopg2-binary==2.9.11
 pyarrow==18.1.0
 pyarrow-hotfix==0.7