diff --git a/day4/prac1/Dockerfile b/day4/prac1/Dockerfile
index b2d3c3a..d2d5d9f 100644
--- a/day4/prac1/Dockerfile
+++ b/day4/prac1/Dockerfile
@@ -1,5 +1,10 @@
-FROM golang:1.24
+# Build Stage
+FROM golang:1.24 AS builder
 WORKDIR /src
 COPY ./main.go .
-RUN go build -o /bin/hello ./main.go
+RUN go build -o hello ./main.go
+
+# Runtime Stage
+FROM gcr.io/distroless/base
+COPY --from=builder /src/hello /bin/hello
 CMD ["/bin/hello"]