diff --git a/requirements.txt b/requirements.txt
index ea3d53b..4c10eda 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
 gensim==4.3.1
-nltk==3.8.1
+nltk==3.9
 tqdm==4.66.3
\ No newline at end of file
diff --git a/requirements_dev.txt b/requirements_dev.txt
index ddb4f89..c362090 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -4,7 +4,7 @@ flake8==6.0.0
 gensim==4.3.1
 isort==5.12.0
 mypy==1.3.0
-nltk==3.8.1
+nltk==3.9
 pycln==2.1.3
 pylint==2.17.4
 pytest==7.3.1
\ No newline at end of file