diff --git a/requirements.txt b/requirements.txt
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,6 +13,7 @@ MarkupSafe==0.23
 pygal==1.6.2
 pygeoip==0.3.2
 Pygments==2.0.1
+python-gnupg==0.3.7
 requests==2.5.0
 Werkzeug==0.10.1
 WTForms==2.0.2