diff --git a/seahub/Dockerfile b/seahub/Dockerfile
index df73490..b5d52eb 100644
--- a/seahub/Dockerfile
+++ b/seahub/Dockerfile
@@ -61,7 +61,7 @@ django_webpack_loader==3.1.0 \
 django_picklefield==3.1 \
 django_formtools==2.4 \
 djangorestframework==3.15.2 \
-python-dateutil==2.9.0 \
+python-dateutil==2.9.0.post0 \
 python-cas==1.6.0 \
 requests==2.32.3 \
 requests_oauthlib==2.0.0 \