diff --git a/.github/workflows/ci-build.yml b/.github/workflows/ci-build.yml
index e0e45be..ae256e2 100644
--- a/.github/workflows/ci-build.yml
+++ b/.github/workflows/ci-build.yml
@@ -6,16 +6,25 @@ on:
   pull_request:
     branches: [ master ]
 
+permissions:
+  contents: read
+
 jobs:
   build:
     runs-on: ubuntu-latest
     name: CI Build
     steps:
+    
+    - name: Harden Runner
+      uses: step-security/harden-runner@74b568e8591fbb3115c70f3436a0c6b0909a8504
+      with:
+        egress-policy: audit # TODO: change to 'egress-policy: block' after couple of runs
+
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@d171c3b028d844f2bf14e9fdec0c58114451e4bf
 
     - name: Setup .Net
-      uses: actions/setup-dotnet@v1
+      uses: actions/setup-dotnet@608ee757cfcce72c2e91e99aca128e0cae67de87
       with:
         dotnet-version: 6.0.x
 
diff --git a/.github/workflows/release-build.yml b/.github/workflows/release-build.yml
index eb1e12c..dae8b11 100644
--- a/.github/workflows/release-build.yml
+++ b/.github/workflows/release-build.yml
@@ -8,18 +8,27 @@ env:
   REGISTRY: ghcr.io
   IMAGE_NAME: ${{ github.repository }}
 
+permissions:
+  contents: read
+
 jobs:
   build:
     name: Test Build
     runs-on: ubuntu-latest
     steps:
+    
+    - name: Harden Runner
+      uses: step-security/harden-runner@74b568e8591fbb3115c70f3436a0c6b0909a8504
+      with:
+        egress-policy: audit # TODO: change to 'egress-policy: block' after couple of runs
+
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@d171c3b028d844f2bf14e9fdec0c58114451e4bf
       with:
         fetch-depth: 0
 
     - name: Setup .Net
-      uses: actions/setup-dotnet@v1
+      uses: actions/setup-dotnet@608ee757cfcce72c2e91e99aca128e0cae67de87
       with:
         dotnet-version: 6.0.x
 
@@ -40,11 +49,17 @@ jobs:
       contents: read
       packages: write
     steps:
+
+      - name: Harden Runner
+        uses: step-security/harden-runner@74b568e8591fbb3115c70f3436a0c6b0909a8504
+        with:
+          egress-policy: audit # TODO: change to 'egress-policy: block' after couple of runs
+
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@d171c3b028d844f2bf14e9fdec0c58114451e4bf
 
       - name: Login to GitHub Container Registry
-        uses: docker/login-action@v1
+        uses: docker/login-action@dd4fa0671be5250ee6f50aedf4cb05514abda2c7
         with:
           registry: ${{ env.REGISTRY }}
           username: ${{ github.repository_owner }}
@@ -52,12 +67,12 @@ jobs:
 
       - name: Extract Docker metadata
         id: meta
-        uses: docker/metadata-action@v3
+        uses: docker/metadata-action@b2391d37b4157fa4aa2e118d643f417910ff3242
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
 
       - name: Build + Push Docker image
-        uses: docker/build-push-action@v2
+        uses: docker/build-push-action@ac9327eae2b366085ac7f6a2d02df8aa8ead720a
         with:
           context: .
           push: true