diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8fb10535..e269686b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,31 +11,52 @@ env:
   GO111MODULE: on
   COVERALLS_TOKEN: ${{ secrets.COVERALLS_TOKEN }}
 
+permissions:
+  contents: read
+
 jobs:
   Build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-go@v3
+      - name: Harden the runner (Audit all outbound calls)
+        uses: step-security/harden-runner@002fdce3c6a235733a90a27c80493a3241e56863 # v2.12.1
+        with:
+          egress-policy: audit
+
+      - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
+      - uses: actions/setup-go@be3c94b385c4f180051c996d336f57a34c397495 # v3.6.1
         with:
           go-version: ${{ env.go_version }}
       - run: make build
   Test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-go@v3
+      - name: Harden the runner (Audit all outbound calls)
+        uses: step-security/harden-runner@002fdce3c6a235733a90a27c80493a3241e56863 # v2.12.1
+        with:
+          egress-policy: audit
+
+      - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
+      - uses: actions/setup-go@be3c94b385c4f180051c996d336f57a34c397495 # v3.6.1
         with:
           go-version: ${{ env.go_version }}
       - run: make test
   Lint:
+    permissions:
+      contents: read  # for actions/checkout to fetch code
+      pull-requests: read  # for golangci/golangci-lint-action to fetch pull requests
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-go@v3
+      - name: Harden the runner (Audit all outbound calls)
+        uses: step-security/harden-runner@002fdce3c6a235733a90a27c80493a3241e56863 # v2.12.1
+        with:
+          egress-policy: audit
+
+      - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
+      - uses: actions/setup-go@be3c94b385c4f180051c996d336f57a34c397495 # v3.6.1
         with:
           go-version: ${{ env.go_version }}
-      - uses: golangci/golangci-lint-action@v3
+      - uses: golangci/golangci-lint-action@3a919529898de77ec3da873e3063ca4b10e7f5cc # v3.7.0
         with:
           version: latest
           args: --timeout 3m
@@ -43,10 +64,15 @@ jobs:
   Check-License:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - name: Harden the runner (Audit all outbound calls)
+        uses: step-security/harden-runner@002fdce3c6a235733a90a27c80493a3241e56863 # v2.12.1
+        with:
+          egress-policy: audit
+
+      - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
         with:
           version: latest
-      - uses: actions/setup-go@v3
+      - uses: actions/setup-go@be3c94b385c4f180051c996d336f57a34c397495 # v3.6.1
         with:
           go-version: ${{ env.go_version }}
       - run: make check-license
@@ -54,7 +80,12 @@ jobs:
   Check-format:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - name: Harden the runner (Audit all outbound calls)
+        uses: step-security/harden-runner@002fdce3c6a235733a90a27c80493a3241e56863 # v2.12.1
+        with:
+          egress-policy: audit
+
+      - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
         with:
           version: latest
       - run: make check-format 
@@ -62,10 +93,15 @@ jobs:
   Coverage:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - name: Harden the runner (Audit all outbound calls)
+        uses: step-security/harden-runner@002fdce3c6a235733a90a27c80493a3241e56863 # v2.12.1
+        with:
+          egress-policy: audit
+
+      - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
         with:
           version: latest
-      - uses: actions/setup-go@v3
+      - uses: actions/setup-go@be3c94b385c4f180051c996d336f57a34c397495 # v3.6.1
         with:
           go-version: ${{ env.go_version }}
       - run: make test-cover COVERALLS_TOKEN="$COVERALLS_TOKEN"
@@ -73,7 +109,7 @@ jobs:
   # Salus:
   #   runs-on: ubuntu-latest
   #   steps:
-  #     - uses: actions/checkout@v3
+  #     - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
   #       with:
   #         version: latest
   #     - run: make salus