diff --git a/requirements.txt b/requirements.txt
index be8829c..9cfdffc 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,3 +3,4 @@ hvac>=1.0.2,<1.1.0
 jsonpath-ng==1.5.3
 retry==0.9.2
 types-retry==0.9.9
+python-dateutil>=2.8.0