diff --git a/requirements.txt b/requirements.txt
index 2741cf4..93cfda4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ Werkzeug==3.1.8
 # which we don't use. chat.completions is unchanged.
 openai>=2.32.0,<3.0.0
 tiktoken==0.12.0
-httpx[http2]==0.27.2
+httpx[http2]==0.28.1
 
 # Security and utilities
 bcrypt==5.0.0