diff --git a/requirements.txt b/requirements.txt
index 701de1f..44759cb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,7 +24,7 @@ pyflakes==2.1.1
 pyparsing==2.3.1
 PySocks==1.6.8
 pytest==4.3.1
-python-dateutil==2.8.0
+python-dateutil==2.9.0
 python-telegram-bot==12.0.0b1
 returns==0.4.0
 schedule==0.6.0