diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 4dfccd9..293613e 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -14,8 +14,6 @@ env:
 jobs:
   release:
     runs-on: ubuntu-latest
-    environment:
-      name: production
 
     steps:
       - uses: actions/setup-go@v3
diff --git a/Dockerfile b/Dockerfile
index fe6e903..42052e4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,15 +1,15 @@
 ###############################
-FROM golang:1.14-alpine AS build
+FROM golang:1.18-alpine AS build
 
 RUN mkdir -p /go/src/github.com/subchen/frep
 COPY . /go/src/github.com/subchen/frep
 WORKDIR /go/src/github.com/subchen/frep
 
 RUN apk add --no-cache make git
-RUN make build-linux
+RUN make clean build-linux
 
 ###############################
-FROM alpine:3.11
+FROM alpine:3.15
 
 COPY --from=build /go/src/github.com/subchen/frep/_releases/frep-* /usr/local/bin/frep
 
diff --git a/Makefile b/Makefile
index ef61916..21ab847 100644
--- a/Makefile
+++ b/Makefile
@@ -25,6 +25,10 @@ lint:
 build:
 	go build -ldflags "$(LDFLAGS)"
 
+build-linux:
+	CGO_ENABLED=0 GOOS=linux GOARCH=amd64 \
+		go build -a -installsuffix cgo -ldflags "$(LDFLAGS)" -o _releases/frep-$(VERSION)-linux-amd64
+
 build-all: clean fmt
 	CGO_ENABLED=0 GOOS=linux GOARCH=amd64 \
 		go build -a -installsuffix cgo -ldflags "$(LDFLAGS)" -o _releases/frep-$(VERSION)-linux-amd64