diff --git a/packages/graphrag/pyproject.toml b/packages/graphrag/pyproject.toml
index 2f687655f..c6d478f22 100644
--- a/packages/graphrag/pyproject.toml
+++ b/packages/graphrag/pyproject.toml
@@ -46,7 +46,7 @@ dependencies = [
     "graspologic-native~=1.2",
     "json-repair~=0.30",
     "networkx~=3.4",
-    "nltk==3.9.1",
+    "nltk==3.9.3",
     "numpy~=2.1",
     "pandas~=2.3",
     "pyarrow~=22.0",