diff --git a/backend/pyproject.toml b/backend/pyproject.toml
index ec93bd2..23c7fd7 100644
--- a/backend/pyproject.toml
+++ b/backend/pyproject.toml
@@ -20,7 +20,7 @@ dependencies = [
 [project.optional-dependencies]
 dev = [
     "httpx>=0.27,<1.0",
-    "pytest>=9.0.3,<10.0",
+    "pytest>=9.1.1,<10.0",
     "pytest-asyncio>=1.4,<2.0",
     "ruff>=0.7,<1.0",
 ]
diff --git a/backend/requirements-dev.txt b/backend/requirements-dev.txt
index 5a34e37..b06ad1f 100644
--- a/backend/requirements-dev.txt
+++ b/backend/requirements-dev.txt
@@ -1,7 +1,7 @@
 -r requirements.txt
 
 httpx>=0.27,<0.28
-pytest>=9.0.3,<10.0
+pytest>=9.1.1,<10.0
 pytest-asyncio>=1.4,<2.0
 ruff>=0.7,<1.0
 pip-audit>=2.7,<3.0