diff --git a/dnsseeder/docker/Dockerfile b/dnsseeder/docker/Dockerfile
index 56cd3a297..0bfdc6a3e 100644
--- a/dnsseeder/docker/Dockerfile
+++ b/dnsseeder/docker/Dockerfile
@@ -12,12 +12,17 @@ RUN go get -u golang.org/x/lint/golint \
       github.com/opennota/check/cmd/structcheck \
       github.com/opennota/check/cmd/varcheck
 
-COPY . .
-
 # GO111MODULE=on forces Go to use the go-module system
 # TODO: remove this once Go 1.13 is released
 ENV GO111MODULE=on
 
+COPY go.mod .
+COPY go.sum .
+
+RUN go mod download
+
+COPY . .
+
 RUN go vet ./...
 # RUN aligncheck ./...
 # RUN structcheck -e ./...
diff --git a/docker/Dockerfile b/docker/Dockerfile
index 0bbba6ba0..804a27b87 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -12,12 +12,17 @@ RUN go get -u golang.org/x/lint/golint \
       github.com/opennota/check/cmd/structcheck \
       github.com/opennota/check/cmd/varcheck
 
-COPY . .
-
 # GO111MODULE=on forces Go to use the go-module system
 # TODO: remove this once Go 1.13 is released
 ENV GO111MODULE=on
 
+COPY go.mod .
+COPY go.sum .
+
+RUN go mod download
+
+COPY . .
+
 RUN TEST_DIRS=`go list -f {{.Dir}} ./... | grep -v /vendor/` GOFMT_RESULT=`gofmt -l $TEST_DIRS`; echo $GOFMT_RESULT; test -z "$GOFMT_RESULT"
 RUN go vet ./...
 RUN TEST_DIRS=`go list -f {{.Dir}} ./... | grep -v /vendor/` golint -set_exit_status $TEST_DIRS
diff --git a/docker/Dockerfile.dev b/docker/Dockerfile.dev
index 9b3c1a013..87988457c 100644
--- a/docker/Dockerfile.dev
+++ b/docker/Dockerfile.dev
@@ -12,12 +12,17 @@ RUN apk add --no-cache libc6-compat
 
 RUN go get github.com/derekparker/delve/cmd/dlv
 
-COPY . .
-
 # GO111MODULE=on forces Go to use the go-module system
 # TODO: remove this once Go 1.13 is released
 ENV GO111MODULE=on
 
+COPY go.mod .
+COPY go.sum .
+
+RUN go mod download
+
+COPY . .
+
 RUN CGO_ENABLED=0 GOOS=linux go build -gcflags "all=-N -l" -a -installsuffix cgo -o btcd .
 
 ENTRYPOINT [ "/sbin/tini", "--" ]
diff --git a/mining/simulator/docker/Dockerfile b/mining/simulator/docker/Dockerfile
index 4424e7d1b..c5fb7fe98 100644
--- a/mining/simulator/docker/Dockerfile
+++ b/mining/simulator/docker/Dockerfile
@@ -7,12 +7,17 @@ WORKDIR /go/src/github.com/daglabs/btcd
 
 RUN apk add --no-cache curl git
 
-COPY . .
-
 # GO111MODULE=on forces Go to use the go-module system
 # TODO: remove this once Go 1.13 is released
 ENV GO111MODULE=on
 
+COPY go.mod .
+COPY go.sum .
+
+RUN go mod download
+
+COPY . .
+
 RUN cd mining/simulator && CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o mining_simulator .
 
 # --- multistage docker build: stage #2: runtime image