diff --git a/Dockerfile b/Dockerfile
index 5e32421152134151c96fd833dfc83d00cd7af3cf..37b4f6cb8694716edc2ed02c8ec398ac4a41f8e5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,6 +7,10 @@ RUN apt-get update && apt-get install -y git
 RUN git config --global url."https://$GITLAB_USER:$GITLAB_TOKEN@code.fbi.h-da.de".insteadOf "https://code.fbi.h-da.de"
 
 WORKDIR /src/gosdn
+COPY go.mod .
+COPY go.sum .
+RUN ls -la
+RUN go mod download
 COPY . .
 RUN GOOS=linux go build $BUILDARGS ./cmd/gosdn