diff --git a/python/requirements/rllib/requirements_rllib.txt b/python/requirements/rllib/requirements_rllib.txt
index f74424b047f2..a790a89e9646 100644
--- a/python/requirements/rllib/requirements_rllib.txt
+++ b/python/requirements/rllib/requirements_rllib.txt
@@ -35,6 +35,6 @@ higher==0.2.1
 # For auto-generating an env-rendering Window.
 pyglet==1.5.0
 # For JSON reader/writer.
-smart_open==5.0.0
+smart_open==5.1.0
 # Ray Serve example
 starlette==0.14.2