diff --git a/requirements-test.txt b/requirements-test.txt
index f469bc60..cf693fc7 100644
--- a/requirements-test.txt
+++ b/requirements-test.txt
@@ -4,6 +4,6 @@ pytest-cov==3.0.*
 isort==5.9.*
 flake8==4.0.*
 mypy==0.931
-types-python-dateutil==2.8.8
+types-python-dateutil==2.8.9
 freezegun==1.1.0
 types-freezegun
\ No newline at end of file