diff --git a/requirements.txt b/requirements.txt
index 8e2cd80..e8e6a0c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ certifi==2019.6.16
 chardet==3.0.4
 Click==7.0
 Flask==1.0.3
-httplib2==0.13.0
+httplib2==0.19.0
 idna==2.8
 itsdangerous==1.1.0
 Jinja2==2.10.1