diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 494b705..0f40e9a 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -8,7 +8,7 @@ on:
       - "*"
   push:
     branches:
-      - "master"
+      - "main"
 
 jobs:
   docker:
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index ebdd3d1..187084a 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -1,14 +1,14 @@
 ---
-name: 'lint'
+name: "lint"
 
 # yamllint disable-line rule:truthy
 on:
   pull_request:
     branches:
-      - '*'
+      - "*"
   push:
     branches:
-      - 'master'
+      - "main"
 
 jobs:
   hadolint:
@@ -31,8 +31,8 @@ jobs:
         uses: avto-dev/markdown-lint@04d43ee9191307b50935a753da3b775ab695eceb
         # v1.5.0 => 04d43ee9191307b50935a753da3b775ab695eceb
         with:
-          config: '.github/linters/.markdown-lint.yml'
-          args: './README.md'
+          config: ".github/linters/.markdown-lint.yml"
+          args: "./README.md"
 
   shellcheck:
     name: shellcheck
@@ -71,4 +71,4 @@ jobs:
         uses: ibiqlik/action-yamllint@2576378a8e339169678f9939646ee3ee325e845c
         # v3.0.2 => c19bd0523a9011c3a3960fe6640a0882b59af15d
         with:
-          config_file: '.github/linters/.yamllint.yml'
+          config_file: ".github/linters/.yamllint.yml"
diff --git a/.github/workflows/trivy-analysis.yml b/.github/workflows/trivy-analysis.yml
index a840c1f..39d16b1 100644
--- a/.github/workflows/trivy-analysis.yml
+++ b/.github/workflows/trivy-analysis.yml
@@ -5,7 +5,7 @@ name: trivy-analysis
 on:
   push:
     branches:
-      - master
+      - main
   pull_request:
 
 jobs:
@@ -23,13 +23,13 @@ jobs:
       - name: Run Trivy vulnerability scanner
         uses: aquasecurity/trivy-action@master
         with:
-          image-ref: 'docker.io/dokku/s3backup:${{ github.sha }}'
-          format: 'template'
-          template: '@/contrib/sarif.tpl'
-          output: 'trivy-results.sarif'
-          severity: 'CRITICAL,HIGH'
+          image-ref: "docker.io/dokku/s3backup:${{ github.sha }}"
+          format: "template"
+          template: "@/contrib/sarif.tpl"
+          output: "trivy-results.sarif"
+          severity: "CRITICAL,HIGH"
 
       - name: Upload Trivy scan results to GitHub Security tab
         uses: github/codeql-action/upload-sarif@v3
         with:
-          sarif_file: 'trivy-results.sarif'
+          sarif_file: "trivy-results.sarif"