diff --git a/eval/chat_benchmarks/BigCodeBench/requirements/requirements-eval.txt b/eval/chat_benchmarks/BigCodeBench/requirements/requirements-eval.txt
index 82e1e6bf..5f96e5f9 100644
--- a/eval/chat_benchmarks/BigCodeBench/requirements/requirements-eval.txt
+++ b/eval/chat_benchmarks/BigCodeBench/requirements/requirements-eval.txt
@@ -25,7 +25,7 @@ matplotlib==3.7.0
 mechanize==0.4.9
 natsort==7.1.1
 networkx==2.6.3
-nltk==3.8
+nltk==3.9.4
 numba==0.55.0
 numpy==1.21.2
 opencv-python-headless==4.9.0.80