diff --git a/.github/workflows/build-and-test.yml b/.github/workflows/build-and-test.yml
index 119a531..4de07e1 100644
--- a/.github/workflows/build-and-test.yml
+++ b/.github/workflows/build-and-test.yml
@@ -1,35 +1,47 @@
 name: Build and Test
+
 on:
   pull_request:
+
 jobs:
   go-build:
     runs-on: ubuntu-latest
+    name: Go ${{ matrix.go }} build
+
     strategy:
       matrix:
-        go: [ '1.20', '1.19' ]
-    name: Go ${{ matrix.go }} build
+        go:
+          - '1.20'
+          - '1.19'
+
     steps:
       - uses: actions/checkout@v3
         with:
           fetch-depth: 0
+
       - name: Setup Go
         uses: actions/setup-go@v3
         with:
           go-version: ${{ matrix.go }}
+          check-latest: true
+
       - name: Build and test
         run: |
           go build ./...
           go test -race -coverprofile=profile.cov ./...
+
       - name: Send coverage
         uses: shogo82148/actions-goveralls@v1
         with:
           path-to-profile: profile.cov
           flag-name: Go-${{ matrix.go }}
           parallel: true
+
   coverage:
     needs: go-build
     name: Test Coverage
     runs-on: ubuntu-latest
+
     steps:
       - uses: shogo82148/actions-goveralls@v1
         with:
diff --git a/.github/workflows/docker-build.yml b/.github/workflows/docker-build.yml
index 7494eed..017c33a 100644
--- a/.github/workflows/docker-build.yml
+++ b/.github/workflows/docker-build.yml
@@ -1,15 +1,20 @@
 name: Docker Image
+
 on:
   push:
-    branches: [ "main" ]
-    tags: [ "v*" ]
+    branches:
+      - main
+    tags:
+      - 'v*'
   pull_request:
+
 jobs:
   build:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
         uses: actions/checkout@v3
+
       - name: Docker meta
         id: meta
         uses: docker/metadata-action@v4
@@ -25,18 +30,22 @@ jobs:
             type=edge,branch=main
           flavor: |
             latest=auto
+
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v2
         with:
           platforms: all
+
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v2
+
       - name: Login to DockerHub
         if: github.event_name != 'pull_request'
         uses: docker/login-action@v2
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
+
       - name: Login to GitHub Container Registry
         if: github.event_name != 'pull_request'
         uses: docker/login-action@v2
@@ -44,6 +53,7 @@ jobs:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
           password: ${{ secrets.GITHUB_TOKEN }}
+
       - name: Build and push
         uses: docker/build-push-action@v4
         with:
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 3c22cc2..e5c1c1a 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -1,9 +1,13 @@
 name: Build and Release
+
 on:
   push:
-    branches: [ "main" ]
-    tags: [ "v*" ]
+    branches:
+      - main
+    tags:
+      - 'v*'
   pull_request:
+
 jobs:
   release:
     runs-on: ubuntu-latest
@@ -11,27 +15,33 @@ jobs:
       - uses: actions/checkout@v3
         with:
           fetch-depth: 0
+
       - name: Setup Go
         uses: actions/setup-go@v3
         with:
-          go-version: 1.19
+          go-version: '1.20'
+          check-latest: true
+
       - name: Setup Node.js
         uses: actions/setup-node@v3
         with:
           node-version: '16.x'
           cache: 'yarn'
           cache-dependency-path: ui/yarn.lock
+
       - name: Build frontend
         run: |
           yarn install --frozen-lockfile --non-interactive
           yarn run build
         working-directory: ./ui
+
       - name: Test build release
         uses: goreleaser/goreleaser-action@v4
         if: "!startsWith(github.ref, 'refs/tags/v')"
         with:
           version: latest
           args: release --snapshot
+
       - name: Build and publish release
         uses: goreleaser/goreleaser-action@v4
         if: "startsWith(github.ref, 'refs/tags/v')"
diff --git a/Dockerfile b/Dockerfile
index e07b2f9..22b201f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,7 +11,7 @@ RUN yarn install --frozen-lockfile --non-interactive
 RUN yarn run build
 
 ### Build backend
-FROM golang:1.19-alpine3.17 as backend
+FROM golang:1.20-alpine3.18 as backend
 RUN apk add --no-cache --virtual .build-deps g++ git make
 WORKDIR /build
 COPY . .
@@ -22,7 +22,7 @@ RUN go build -o inbucket \
   -v ./cmd/inbucket
 
 ### Run in minimal image
-FROM alpine:3.17
+FROM alpine:3.18
 RUN apk --no-cache add tzdata
 WORKDIR /opt/inbucket
 RUN mkdir bin defaults ui
diff --git a/go.mod b/go.mod
index c27b6e7..876194d 100644
--- a/go.mod
+++ b/go.mod
@@ -1,5 +1,7 @@
 module github.com/inbucket/inbucket
 
+go 1.20
+
 require (
 	github.com/cjoudrey/gluahttp v0.0.0-20201111170219-25003d9adfa9
 	github.com/google/subcommands v1.2.0
@@ -38,5 +40,3 @@ require (
 	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
-
-go 1.18