diff --git a/requirements-dev.txt b/requirements-dev.txt
index 56acb65..cc0e4f1 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,5 +1,5 @@
 mypy==0.740
-pytest==5.0.0
+pytest==9.0.3
 flake8==3.7.7
 parameterized==0.7.0
 coverage==5.0.3