diff --git a/pyproject.toml b/pyproject.toml
index 41cc8da..79ce4d8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -27,7 +27,7 @@ classifiers = [
 dependencies = [
     "numpy>=1.21",
     "networkx>=2.6",
-    "rank-bm25>=0.2",
+    "rank-bm25>=0.2.2",
     "scikit-learn>=1.0",
     "pyyaml>=6.0",
     "jieba>=0.42",