diff --git a/Dockerfile b/Dockerfile
index 0f180f9..97b84b6 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 FROM golang:alpine
 
-RUN apk --no-cache add git make && rm -rf /var/lib/apt/lists/*
+RUN apk --no-cache add git make curl && rm -rf /var/lib/apt/lists/*
 
 RUN go get github.com/gojp/goreportcard && \
     go get github.com/gojp/goreportcard/cmd/goreportcard-cli && \