diff --git a/python/packages/microsoft_agents_m365copilot_core/requirements-dev.txt b/python/packages/microsoft_agents_m365copilot_core/requirements-dev.txt
index 9edd6e33..74aa6594 100644
--- a/python/packages/microsoft_agents_m365copilot_core/requirements-dev.txt
+++ b/python/packages/microsoft_agents_m365copilot_core/requirements-dev.txt
@@ -135,7 +135,7 @@ frozenlist==1.5.0 ; python_version >= '3.7'
 
 h11==0.16.0 ; python_version >= '3.7'
 
-h2==4.3.0
+h2==4.4.1
 
 hpack==4.1.0 ; python_full_version >= '3.6.1'