diff --git a/requirements.txt b/requirements.txt
index 0d454e0..a66ee22 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,7 +21,7 @@ Flask-SQLAlchemy==2.3.2
 Flask-WTF==0.14.2
 gunicorn==20.0.4
 html5lib==0.999
-httplib2==0.9.1
+httplib2==0.18.0
 idna==2.8
 itsdangerous==0.24
 Jinja2==2.10.1
diff --git a/requirements_api.txt b/requirements_api.txt
old mode 100755
new mode 100644
index 872f6b0..2a5bb6d
--- a/requirements_api.txt
+++ b/requirements_api.txt
@@ -21,7 +21,7 @@ Flask-SQLAlchemy==2.3.2
 Flask-WTF==0.14.2
 gunicorn==20.0.4
 html5lib==0.999
-httplib2==0.9.1
+httplib2==0.18.0
 #idna==2.8
 itsdangerous==0.24
 Jinja2==2.10.1