diff --git a/setup.py b/setup.py
index 21245f7c74d2f1bfd32b65d1b49fdb7b7d29518a..d053affb17025b6377b64f937a35a926e2cd5f19 100644
--- a/setup.py
+++ b/setup.py
@@ -93,6 +93,7 @@ if __name__ == "__main__":
             'prometheus-client',
             'psutil',
             'atomic',
+            'python-dateutil>=2.8.1'
         ],
         extras_require={
             'dev': [