diff --git a/requirements.txt b/requirements.txt
index f8e2d90..5051e49 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ Flask==1.1.4
 https://github.com/mozilla-iam/Flask-pyoidc/archive/v1.0.0.tar.gz
 Flask-SSLify==0.1.5
 funcsigs==1.0.2
-future==0.18.2
+future==0.18.3
 gunicorn==20.1.0
 idna==2.10
 ipaddress==1.0.23