diff --git a/docs/requirements.txt b/docs/requirements.txt
index a0d5db805273cfd87bc4ec4d83de26bd3a50bccf..d7e901267ff5ae3f6095616a558ef1351a134fab 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -33,7 +33,7 @@ pygments==2.10.0
     # via sphinx
 pyparsing==2.4.7
     # via packaging
-pytz==2021.1
+pytz==2021.3
     # via babel
 recommonmark==0.7.1
     # via -r requirements.in