diff --git a/Dockerfile b/Dockerfile
index 436602be5..9740e81a5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,6 +12,7 @@ RUN apk add --no-cache git make tzdata \
 FROM alpine
 LABEL name=ddns-go
 LABEL url=https://github.com/jeessy2/ddns-go
+RUN apk add --no-cache curl grep
 
 WORKDIR /app
 COPY --from=builder /usr/share/zoneinfo /usr/share/zoneinfo