diff --git a/skills/remove-ai-marks/scripts/requirements-markllm.txt b/skills/remove-ai-marks/scripts/requirements-markllm.txt
index 55e0203..f860783 100644
--- a/skills/remove-ai-marks/scripts/requirements-markllm.txt
+++ b/skills/remove-ai-marks/scripts/requirements-markllm.txt
@@ -26,7 +26,7 @@ SentencePiece==0.2.2
 nltk==3.10.3
 jieba==0.42.1
 tqdm==4.70.0
-matplotlib==3.11.1
+matplotlib==3.11.2
 Cython==3.3.0
 numpy==2.5.2
 scipy==1.18.1