diff --git a/environments/h100env_requirements.txt b/environments/h100env_requirements.txt
index e44fbda..6ac25bb 100644
--- a/environments/h100env_requirements.txt
+++ b/environments/h100env_requirements.txt
@@ -28,7 +28,7 @@ lightning-utilities==0.12.0
 MarkupSafe==2.1.5
 matplotlib==3.9.4
 mpmath==1.3.0
-msgpack==1.1.0
+msgpack==1.2.1
 multidict==6.1.0
 networkx==3.2.1
 numpy==1.26.3