diff --git a/requirements.txt b/requirements.txt
index 0c79c04..9dad0f7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ backports.functools-lru-cache~=1.5
 certifi~=2018.4.16
 chardet~=3.0.4
 idna~=2.6
-python-dateutil~=2.7.3
+python-dateutil~=2.8.0
 requests~=2.20.1
 six~=1.14.0
 urllib3~=1.22