diff --git a/Dockerfile b/Dockerfile
index d5e358387..3cf1306db 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -9,7 +9,7 @@ COPY . .
 RUN BUILD_FLAGS="CGO_ENABLED=0 GOOS=linux" make build-powd
 RUN BUILD_FLAGS="CGO_ENABLED=0 GOOS=linux" make build-pow
 
-FROM alpine
+FROM alpine:3.15
 COPY --from=builder /app/iplocation/maxmind/GeoLite2-City.mmdb /app/GeoLite2-City.mmdb
 COPY --from=builder /app/powd /app/powd
 COPY --from=builder /app/pow /app/pow