diff --git a/requirements_dev.txt b/requirements_dev.txt
index d457612..19bd038 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -8,5 +8,5 @@ coverage==4.5.1
 Sphinx==1.8.1
 twine==1.12.1
 
-pytest==3.8.2
+pytest==9.0.3
 pytest-runner==4.2