diff --git a/isolation-forest-onnx/requirements-dev.txt b/isolation-forest-onnx/requirements-dev.txt
index 6227d8b..6b105de 100644
--- a/isolation-forest-onnx/requirements-dev.txt
+++ b/isolation-forest-onnx/requirements-dev.txt
@@ -1,6 +1,6 @@
 -r requirements.txt  # Include runtime dependencies
 # Testing dependencies
-pytest==8.3.2
+pytest==9.0.3
 coverage==7.6.1
 pandas==2.2.3
 
diff --git a/isolation-forest-onnx/setup.cfg b/isolation-forest-onnx/setup.cfg
index b0814eb..5084738 100644
--- a/isolation-forest-onnx/setup.cfg
+++ b/isolation-forest-onnx/setup.cfg
@@ -23,7 +23,7 @@ install_requires =
 
 [options.extras_require]
 test =
-    pytest==8.3.2
+    pytest==9.0.3
     coverage==7.6.1
 dev =
     wheel==0.46.2