diff --git a/python/requirements/ml/requirements_rllib.txt b/python/requirements/ml/requirements_rllib.txt
index 4e41bff5358d..4c2383c3f909 100644
--- a/python/requirements/ml/requirements_rllib.txt
+++ b/python/requirements/ml/requirements_rllib.txt
@@ -32,7 +32,7 @@ open-spiel==1.0.2
 # For MAML on PyTorch.
 higher==0.2.1
 # For auto-generating an env-rendering Window.
-pyglet==1.5.15
+pyglet==1.5.27
 imageio-ffmpeg==0.4.5
 # ONNX
 onnx==1.9.0