diff --git a/api2fusion/requirements.txt b/api2fusion/requirements.txt
index fa194543..36fd5f57 100644
--- a/api2fusion/requirements.txt
+++ b/api2fusion/requirements.txt
@@ -5,7 +5,7 @@ chardet==3.0.4
 google-api-python-client==1.7.4
 google-auth==1.5.0
 google-auth-httplib2==0.0.3
-httplib2==0.18.0
+httplib2==0.19.0
 idna==2.7
 numpy==1.15.0
 pandas==0.23.3