diff --git a/Makefile b/Makefile
index f612ef7..3ff1474 100644
--- a/Makefile
+++ b/Makefile
@@ -3,6 +3,6 @@ all: clean static/css/main.css
 clean:
 	-rm static/css/main.css
 static/css/main.css:
-	npm run prod
+	yarn prod