diff --git a/bigquery/cloud-client/requirements.txt b/bigquery/cloud-client/requirements.txt
index 70d64447256..9b40cd64aea 100644
--- a/bigquery/cloud-client/requirements.txt
+++ b/bigquery/cloud-client/requirements.txt
@@ -2,4 +2,4 @@ google-cloud-bigquery[pandas]==1.20.0
 google-auth-oauthlib==0.4.0
 ipython==7.8.0
 matplotlib==3.1.1
-pytz==2019.2
+pytz==2019.3