diff --git a/Dockerfile b/Dockerfile
index a2339e3..e3093c1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 FROM golang:1.16-alpine
 RUN apk add libcap git
 WORKDIR $GOPATH/src/git.k-space.ee/k-space/goredirect
-COPY go.mod .
+COPY go.mod go.sum .
 RUN go mod download
 COPY main.go .
 RUN go build -o goredirect main.go