diff --git a/server/server.js b/server/server.js
index 1415559..ff19370 100644
--- a/server/server.js
+++ b/server/server.js
@@ -28,7 +28,8 @@ app.use(session({
   secret: config.server.session_secret,
   store: new SessionStore(config.redis),
   resave: false,
-  saveUninitialized: true
+  saveUninitialized: true,
+  cookie: { secure: process.env.NODE_ENV !== 'development' }
 }))
 
 app.use((req, res, next) => {