diff --git a/testdata/requirements.txt b/testdata/requirements.txt
index 5009846..96a48e1 100644
--- a/testdata/requirements.txt
+++ b/testdata/requirements.txt
@@ -1,5 +1,5 @@
 xgboost==1.6.0
-scikit-learn==1.4.0
+scikit-learn==1.4.1.post1
 treelite==3.9.1
 treelite-runtime==3.9.1
 pandas==2.2.1