diff --git a/requirements-dev.txt b/requirements-dev.txt
index 1934116..3cf608a 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -6,7 +6,7 @@ pytest>=8.0.0
 pytest-asyncio>=0.23.0
 pytest-mock>=3.12.0
 pytest-cov>=4.1.0
-httpx>=0.26.0
+httpx>=0.28.1
 
 # Linting and formatting
 black>=24.0.0