diff --git a/llama4guard_vllm_requirements.txt b/llama4guard_vllm_requirements.txt
index 436d96c..b47d52a 100644
--- a/llama4guard_vllm_requirements.txt
+++ b/llama4guard_vllm_requirements.txt
@@ -100,7 +100,7 @@ multidict==6.7.1
 multiprocess==0.70.18
 networkx==3.6.1
 ninja==1.13.0
-nltk==3.9.2
+nltk==3.9.3
 numba==0.61.2
 numpy==2.2.6
 nvidia-cublas-cu12==12.8.4.1