diff --git a/dev-requirements.txt b/dev-requirements.txt
index 4d29149e..b923b844 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -3,5 +3,5 @@ flake8==6.1.0
 pytest-timeout==2.2.0
 pytest-asyncio==0.21.1
 requests==2.31.0
-httpx==0.25.0
+httpx==0.24.1 # version 0.24.1 is required by httpx_ws
 httpx_ws==0.4.2