diff --git a/pyproject.toml b/pyproject.toml
index e2c9f63..9d19261 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -25,7 +25,7 @@ dependencies = [
 
 [project.optional-dependencies]
 dev = [
-    "pytest>=8.0.0",
+    "pytest>=9.1.0",
     "pytest-asyncio>=0.23.0",
     "black>=24.0.0",
     "mypy>=1.10.0",
diff --git a/requirements-dev.txt b/requirements-dev.txt
index a23e2fd..3813027 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,6 +1,6 @@
 # Local Weaver development dependencies
 -r requirements.txt
-pytest>=9.0.3
+pytest>=9.1.0
 pytest-asyncio>=1.4.0
 black>=24.0.0
 mypy>=1.8.0