diff --git a/requirements_dev.txt b/requirements_dev.txt
index 1167683..c839e9b 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -8,7 +8,7 @@ coverage==4.5.1
 Sphinx==1.8.1
 twine==1.12.1
 
-pytest==3.8.2
+pytest==9.0.3
 pytest-runner==4.2
 certifi>=2023.7.22 # not directly required, pinned by Snyk to avoid a vulnerability
 jinja2>=3.1.3 # not directly required, pinned by Snyk to avoid a vulnerability