diff --git a/requirements.txt b/requirements.txt
index 79d8057..32e3be7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,7 +20,7 @@ Flask==1.1.1
 funcsigs==1.0.2
 guacamole==0.9.2
 html5lib==0.999
-httplib2==0.9.1
+httplib2==0.19.0
 idna==2.0
 importlib-metadata==1.3.0
 ipykernel==5.1.3