diff --git a/api/.env.example b/api/.env.example
index 9776490..fadc815 100644
--- a/api/.env.example
+++ b/api/.env.example
@@ -1,2 +1,2 @@
-NODE_ENV=development
-PORT=3001
+NODE_ENV='development'
+PORT='3001'
diff --git a/app/.env.example b/app/.env.example
index 677c7bc..ed9bcb7 100644
--- a/app/.env.example
+++ b/app/.env.example
@@ -1,3 +1,3 @@
 NODE_ENV='development'
-PORT=3000
+PORT='3000'
 API_URI='http://localhost:3001/graphql'