diff --git a/requirements3.txt b/requirements3.txt
index 3a9787c..a3177b6 100644
--- a/requirements3.txt
+++ b/requirements3.txt
@@ -14,7 +14,7 @@ Flask==1.1.2
 google-api-python-client==1.11.0
 gunicorn==20.0.4
 htmlmin==0.1.12
-httplib2==0.18.1
+httplib2==0.19.0
 jdcal==1.4.1
 Jinja2==2.11.2
 jmespath==0.10.0