diff --git a/Dockerfile b/Dockerfile
index 6946bfa..e7e1831 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -15,7 +15,7 @@ RUN go mod download
 
 COPY . .
 
-RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o ./bin/api
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o ./bin/api -mod=mod
 
 # final stage
 FROM alpine:3.13
diff --git a/Dockerfile.tests b/Dockerfile.tests
index 3d7f105..293434f 100644
--- a/Dockerfile.tests
+++ b/Dockerfile.tests
@@ -1,6 +1,7 @@
 FROM golang:1.16
 
 ENV GO111MODULE=on
+ENV GOFLAGS=-mod=mod
 
 WORKDIR /app
 
@@ -12,6 +13,4 @@ COPY go.sum .
 
 RUN go mod download
 
-RUN go mod tidy
-
 COPY . .