diff --git a/requirements.txt b/requirements.txt
index 23e1fe4..526d0e1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ cryptography==3.3.2
 google-auth==1.15.0
 google-auth-oauthlib==0.4.1
 gspread==3.6.0
-httplib2==0.18.1
+httplib2==0.19.0
 idna==2.9
 oauth2client==4.1.3
 oauthlib==3.1.0