diff --git a/Makefile b/Makefile
index 7681449..b5eee58 100644
--- a/Makefile
+++ b/Makefile
@@ -2,10 +2,10 @@ SHELL = /bin/bash
 .DEFAULT_GOAL := serve
 
 serve:
-	gunicorn flask_frontend:app
+	pipenv run gunicorn flask_frontend:app
 
 dev:
-	gunicorn flask_frontend:app --reload
+	pipenv run gunicorn flask_frontend:app --reload
 
 clean:
 	rm -rf static/*