diff --git a/.github/pull_request_template.md b/.github/pull_request_template.md
new file mode 100644
index 0000000..f05727b
--- /dev/null
+++ b/.github/pull_request_template.md
@@ -0,0 +1,13 @@
+# Summary of changes
+
+Do any of the followings changes break current behaviour or configuration?
+
+- **YES** / NO
+
+## How changes have been tested
+
+-
+
+## List any unknowns
+
+-
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
new file mode 100644
index 0000000..3cf9cd0
--- /dev/null
+++ b/.github/workflows/lint.yml
@@ -0,0 +1,35 @@
+name: Lint
+
+on:
+  pull_request:
+  workflow_dispatch:
+
+permissions:
+  pull-requests: write
+
+jobs:
+  lint-bash:
+    name: Lint Bash scripts
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: reviewdog/action-shellcheck@v1
+        with:
+          github_token: ${{ secrets.github_token }}
+          reporter: shellcheck
+          level: warning
+          path: .
+          pattern: '*.sh'
+          fail_on_error: true
+
+  lint-dockerfile:
+    name: Lint Dockerfiles
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: hadolint
+        uses: reviewdog/action-hadolint@v1
+        with:
+          level: warning
+          fail_on_error: true
+          hadolint_ignore: DL3016 DL3018 # Ignore pinning apk and npm packages to specific version with @
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index c3ca724..4cfcc99 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -7,7 +7,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@master
+    - uses: actions/checkout@v3
       with:
         fetch-depth: '0'
     - name: Bump version and push tag
diff --git a/Dockerfile b/Dockerfile
index 6e5e2dc..b64fc5b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,9 +1,9 @@
-FROM node:12-alpine3.15
+FROM node:16-alpine
 LABEL "repository"="https://github.com/anothrNick/github-tag-action"
 LABEL "homepage"="https://github.com/anothrNick/github-tag-action"
 LABEL "maintainer"="Nick Sjostrom"
 
-RUN apk update && apk add bash git curl jq && npm install -g semver
+RUN apk --no-cache add bash git curl jq && npm install -g semver
 
 COPY entrypoint.sh /entrypoint.sh
 
diff --git a/README.md b/README.md
index 0fc7765..bcf2794 100755
--- a/README.md
+++ b/README.md
@@ -22,17 +22,17 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
       with:
         fetch-depth: '0'
     - name: Bump version and push tag
-      uses: anothrNick/github-tag-action@1.36.0
+      uses: anothrNick/github-tag-action@1.40.0
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         WITH_V: true
 ```
 
-_NOTE: set the fetch-depth for `actions/checkout@v2` to be sure you retrieve all commits to look for the semver commit message._
+_NOTE: set the fetch-depth for `actions/checkout@v2` or newer to be sure you retrieve all commits to look for the semver commit message._
 
 #### Options