diff --git a/run-dev.sh b/run-dev.sh
index e1b5e28..fdb9a2b 100755
--- a/run-dev.sh
+++ b/run-dev.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-RACK_ENV=staging \
+RACK_ENV=development \
 REDIS_HOST=localhost \
 REDIS_PORT=6379 \
 REDIS_DB=1 \
@@ -8,4 +8,4 @@ S3_ENDPOINT='http://localhost:9000' \
 S3_ACCESS_KEY='dev-key' \
 S3_SECRET_KEY='123456789' \
 S3_BUCKET=remotestorage \
-bundle exec rainbows --listen localhost:4567
+bundle exec rackup -p 4567