diff --git a/requirements.txt b/requirements.txt
index a24f46b..ba07102 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,7 +15,7 @@ numpy==1.19.0
 pandas==1.0.5
 plac==1.1.3
 preshed==3.0.2
-python-dateutil==2.8.1
+python-dateutil==2.9.0.post0
 pytz==2020.1
 requests==2.24.0
 six==1.15.0