diff --git a/sdks/python/container/ml/py311/base_image_requirements.txt b/sdks/python/container/ml/py311/base_image_requirements.txt
index 58790952177f..8bdb2bedc6c6 100644
--- a/sdks/python/container/ml/py311/base_image_requirements.txt
+++ b/sdks/python/container/ml/py311/base_image_requirements.txt
@@ -140,7 +140,7 @@ mpmath==1.3.0
 multidict==6.7.1
 namex==0.1.0
 networkx==3.6.1
-nltk==3.9.4
+nltk==3.10.0
 numpy==2.4.6
 oauth2client==4.1.3
 objsize==0.7.1
diff --git a/sdks/python/container/ml/py311/gpu_image_requirements.txt b/sdks/python/container/ml/py311/gpu_image_requirements.txt
index 69e9033253c2..c6857ef39cf6 100644
--- a/sdks/python/container/ml/py311/gpu_image_requirements.txt
+++ b/sdks/python/container/ml/py311/gpu_image_requirements.txt
@@ -172,7 +172,7 @@ multidict==6.7.1
 namex==0.1.0
 networkx==3.6.1
 ninja==1.13.0
-nltk==3.9.4
+nltk==3.10.0
 numba==0.61.2
 numpy==2.2.6
 nvidia-cublas==13.1.1.3