diff --git a/demos/moderator_bot/requirements-dev.txt b/demos/moderator_bot/requirements-dev.txt
index 69e66c22e..222a7d5ab 100644
--- a/demos/moderator_bot/requirements-dev.txt
+++ b/demos/moderator_bot/requirements-dev.txt
@@ -18,7 +18,7 @@ pyyaml==6.0.3
 scikit-learn==1.7.2
 scipy==1.16.3
 six==1.17.0
-slack_sdk==3.38.0
+slack_sdk==3.39.0
 urllib3==2.6.0
 yarl==1.22.0
 zipp==3.23.0