diff --git a/requirements.txt b/requirements.txt
index bb8de97..68b5855 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ birdy==0.3.2
 certifi==2018.11.29
 chardet==3.0.4
 gspread==3.1.0
-httplib2==0.12.0
+httplib2==0.19.0
 idna==2.8
 oauth2client==4.1.3
 oauthlib==2.1.0