diff --git a/frontend/Dockerfile b/frontend/Dockerfile
index 1627c8b..f43c53d 100644
--- a/frontend/Dockerfile
+++ b/frontend/Dockerfile
@@ -1,4 +1,4 @@
-FROM nginx:alpine As builder
+FROM nginx:alpine AS builder
 
 # Install dos2unix to convert Windows line endings
 RUN apk add --no-cache dos2unix