diff --git a/Dockerfile b/Dockerfile
index 206391e..7375b03 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,8 +1,10 @@
-FROM golang:1.10 as builder
+FROM golang:1.10.3 as builder
 
 WORKDIR /go/src/github.com/rjeczalik/refmt
 COPY . .
-RUN CGO_ENABLED=0 GOOS=linux go build
+RUN curl -sL -o /usr/local/bin/dep https://github.com/golang/dep/releases/download/v0.4.1/dep-linux-amd64 && \
+    chmod +x /usr/local/bin/dep && dep ensure && \
+    CGO_ENABLED=0 GOOS=linux go build
 
 FROM scratch
 COPY --from=builder /go/src/github.com/rjeczalik/refmt/refmt /refmt