diff --git a/.github/workflows/node.js.yml b/.github/workflows/node.js.yml
index 93d4e8d4..cc434678 100644
--- a/.github/workflows/node.js.yml
+++ b/.github/workflows/node.js.yml
@@ -9,6 +9,9 @@ on:
   pull_request:
     branches: [ master ]
 
+permissions:
+  contents: read
+
 jobs:
   build:
 
@@ -20,9 +23,14 @@ jobs:
         # See supported Node.js release schedule at https://nodejs.org/en/about/releases/
 
     steps:
-    - uses: actions/checkout@v2
+    - name: Harden the runner (Audit all outbound calls)
+      uses: step-security/harden-runner@f4a75cfd619ee5ce8d5b864b0d183aff3c69b55a # v2.13.1
+      with:
+        egress-policy: audit
+
+    - uses: actions/checkout@ee0669bd1cc54295c223e0bb666b733df41de1c5 # v2.7.0
     - name: Use Node.js ${{ matrix.node-version }}
-      uses: actions/setup-node@v2
+      uses: actions/setup-node@7c12f8017d5436eb855f1ed4399f037a36fbd9e8 # v2.5.2
       with:
         node-version: ${{ matrix.node-version }}
         cache: 'npm'
diff --git a/.github/workflows/npm-publish.yml b/.github/workflows/npm-publish.yml
index 7b53d7ed..dfe62003 100644
--- a/.github/workflows/npm-publish.yml
+++ b/.github/workflows/npm-publish.yml
@@ -6,12 +6,20 @@ on:
   release:
     types: [created]
 
+permissions:
+  contents: read
+
 jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-node@v2
+      - name: Harden the runner (Audit all outbound calls)
+        uses: step-security/harden-runner@f4a75cfd619ee5ce8d5b864b0d183aff3c69b55a # v2.13.1
+        with:
+          egress-policy: audit
+
+      - uses: actions/checkout@ee0669bd1cc54295c223e0bb666b733df41de1c5 # v2.7.0
+      - uses: actions/setup-node@7c12f8017d5436eb855f1ed4399f037a36fbd9e8 # v2.5.2
         with:
           node-version: 14
       - run: npm ci
@@ -22,8 +30,13 @@ jobs:
     needs: build
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-node@v2
+      - name: Harden the runner (Audit all outbound calls)
+        uses: step-security/harden-runner@f4a75cfd619ee5ce8d5b864b0d183aff3c69b55a # v2.13.1
+        with:
+          egress-policy: audit
+
+      - uses: actions/checkout@ee0669bd1cc54295c223e0bb666b733df41de1c5 # v2.7.0
+      - uses: actions/setup-node@7c12f8017d5436eb855f1ed4399f037a36fbd9e8 # v2.5.2
         with:
           node-version: 14
           registry-url: https://registry.npmjs.org/
diff --git a/.github/workflows/upload-assets-to-tags.yml b/.github/workflows/upload-assets-to-tags.yml
index eeba9d73..a9845b03 100644
--- a/.github/workflows/upload-assets-to-tags.yml
+++ b/.github/workflows/upload-assets-to-tags.yml
@@ -2,19 +2,29 @@ name: Upload assets to tags
 
 on: push
 
+permissions:
+  contents: read
+
 jobs:
   build:
+    permissions:
+      contents: write  # for softprops/action-gh-release to create GitHub release
     runs-on: ubuntu-latest
     if: startsWith(github.ref, 'refs/tags/')
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-node@v2
+      - name: Harden the runner (Audit all outbound calls)
+        uses: step-security/harden-runner@f4a75cfd619ee5ce8d5b864b0d183aff3c69b55a # v2.13.1
+        with:
+          egress-policy: audit
+
+      - uses: actions/checkout@ee0669bd1cc54295c223e0bb666b733df41de1c5 # v2.7.0
+      - uses: actions/setup-node@7c12f8017d5436eb855f1ed4399f037a36fbd9e8 # v2.5.2
         with:
           node-version: 14
       - run: npm ci
       - run: npm test
       - run: npm run build
       - name: Upload
-        uses: softprops/action-gh-release@v1
+        uses: step-security/action-gh-release@2677a32b1ab8b24324ede3be9da4e1d8c3f686ee # v2.3.2
         with:
           files: dist/*
\ No newline at end of file