diff --git a/requirements.txt b/requirements.txt
index 19f1d0a..49212ae 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -53,7 +53,7 @@ PyHamcrest==1.9.0
 pyOpenSSL==19.0.0
 pyrsistent==0.15.2
 python-dateutil==2.8.0
-pytz==2019.1
+pytz==2021.1
 pywinpty==0.5.5
 PyYAML==3.13
 pyzmq==18.0.1