diff --git a/app.js b/app.js
index 809469c..365df5f 100644
--- a/app.js
+++ b/app.js
@@ -47,7 +47,7 @@ app.use('/graphql', graphqlHTTP({
   graphiql: true,
 }));
 
-app.listen(4000);
+app.listen(config.port || 4000);
 
 // CHECK LOOP
 (async function () {
diff --git a/config.json b/config.json
index 9d433ce..7031c57 100644
--- a/config.json
+++ b/config.json
@@ -1,3 +1,4 @@
 {
-  "checkperiod": 300
+  "checkperiod": 300,
+  "port": 4000
 }
\ No newline at end of file