diff --git a/requirements.txt b/requirements.txt
index a40720b..e0aa3b3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -38,7 +38,7 @@ greenlet==3.1.1
 griffe==1.5.6
 groq==0.18.0
 h11==0.14.0
-h2==4.1.0
+h2==4.3.0
 hpack==4.1.0
 httpcore==1.0.7
 httpx==0.28.1