diff --git a/nlaugmenter/requirements.txt b/nlaugmenter/requirements.txt
index 00732c1..ba87c79 100644
--- a/nlaugmenter/requirements.txt
+++ b/nlaugmenter/requirements.txt
@@ -21,7 +21,7 @@ tqdm
 # sentencepiece==0.1.95
 
 # for code format
-black==21.5b2
+black==24.3.0
 # pre-commit==2.13.0