diff --git a/requirements.txt b/requirements.txt
index bb4313fd..45e4c8c4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ numpy==1.26.4
 pandas==2.3.3
 scikit-learn==1.6.1
 2ppy==0.4.1
-skl2onnx==1.18.0
+skl2onnx==1.19.1
 onnx==1.18.0
 onnxruntime==1.19.2
 onnxconverter-common==1.16.0