diff --git a/testdata/requirements.txt b/testdata/requirements.txt
index 2fe34aa..3318a78 100644
--- a/testdata/requirements.txt
+++ b/testdata/requirements.txt
@@ -1,5 +1,5 @@
 xgboost==1.7.6
 scikit-learn==1.3.1
-treelite==3.9.0
+treelite==3.9.1
 treelite-runtime==3.9.1
 pandas==2.1.1