diff --git a/requirements.txt b/requirements.txt
index 7c16bc3..c953e3b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ jenkspy==0.1.5
 numpy==1.18.3
 pandas==1.0.3
 python-dateutil==2.8.1
-pytz==2020.1
+pytz==2021.3
 six==1.14.0
 urllib3==1.26.5
 openpyxl==3.0.7
\ No newline at end of file