diff --git a/requirements.txt b/requirements.txt
index 0204ba9..0cc9faf 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ neo4j==1.7.1
 neobolt==1.7.12
 neotime==1.7.4
 networkx==2.4
-pytz==2019.1
+pytz==2021.1
 requests==2.23.0
 six==1.14.0
 urllib3==1.24.2