diff --git a/requirements.txt b/requirements.txt
index cfea8ed..3475e48 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ google-auth-oauthlib==0.4.1
 google-pasta==0.1.7
 graphviz==0.13
 html5lib==0.999999999
-httplib2==0.14.0
+httplib2==0.19.0
 hyperlink==17.3.1
 ipython==7.9.0
 ipython-genutils==0.2.0