diff --git a/sdks/python/container/py313/base_image_requirements.txt b/sdks/python/container/py313/base_image_requirements.txt
index a9728cd5e106..b84aeac1296e 100644
--- a/sdks/python/container/py313/base_image_requirements.txt
+++ b/sdks/python/container/py313/base_image_requirements.txt
@@ -121,7 +121,7 @@ mmh3==5.2.1
 mock==5.2.0
 more-itertools==11.1.0
 multidict==6.7.1
-nltk==3.9.4
+nltk==3.10.0
 numpy==2.4.6
 oauth2client==4.1.3
 objsize==0.7.1