diff --git a/backend/pyproject.toml b/backend/pyproject.toml
index 26b6cc9..8e61635 100644
--- a/backend/pyproject.toml
+++ b/backend/pyproject.toml
@@ -16,7 +16,7 @@ dependencies = [
 [project.optional-dependencies]
 test = [
     "pytest>=8.3,<9",
-    "httpx>=0.27,<0.28",
+    "httpx>=0.27,<0.29",
 ]
 
 [tool.setuptools]