diff --git a/pyproject.toml b/pyproject.toml
index 9afc0b5a..91abf426 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -53,7 +53,7 @@ export = [
 qgym_mapper = [
     "qgym==0.3.1",
     "stable-baselines3==2.8.0",
-    "sb3-contrib==2.8.0",
+    "sb3-contrib==2.9.0",
 ]
 docs = [
     "mike>=2.1.3",