diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 49f1851ae..a1ed6f238 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -20,6 +20,9 @@ on:
   schedule:
     - cron: '37 20 * * 6'
 
+permissions:  # added using https://github.com/step-security/secure-workflows
+  contents: read
+
 jobs:
   analyze:
     name: Analyze
@@ -37,12 +40,17 @@ jobs:
         # Learn more about CodeQL language support at https://git.io/codeql-language-support
 
     steps:
+    - name: Harden Runner
+      uses: step-security/harden-runner@ebacdc22ef6c2cfb85ee5ded8f2e640f4c776dd5
+      with:
+        egress-policy: audit # TODO: change to 'egress-policy: block' after couple of runs
+
     - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
-      uses: github/codeql-action/init@v2
+      uses: github/codeql-action/init@4238421316c33d73aeea2801274dd286f157c2bb
       with:
         languages: ${{ matrix.language }}
         # If you wish to specify custom queries, you can do so here or in a config file.
@@ -53,7 +61,7 @@ jobs:
     # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
     # If this step fails, then you should remove it and run the build manually (see below)
     - name: Autobuild
-      uses: github/codeql-action/autobuild@v2
+      uses: github/codeql-action/autobuild@4238421316c33d73aeea2801274dd286f157c2bb
 
     # ℹ️ Command-line programs to run using the OS shell.
     # 📚 https://git.io/JvXDl
@@ -67,4 +75,4 @@ jobs:
     #   make release
 
     - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v2
+      uses: github/codeql-action/analyze@4238421316c33d73aeea2801274dd286f157c2bb
diff --git a/.github/workflows/contracts-testing.yml b/.github/workflows/contracts-testing.yml
index b209a2f16..553df68c9 100644
--- a/.github/workflows/contracts-testing.yml
+++ b/.github/workflows/contracts-testing.yml
@@ -9,19 +9,27 @@ on:
     branches:
       - "*"
       
+permissions:  # added using https://github.com/step-security/secure-workflows
+  contents: read
+
 jobs:
   test:
     runs-on: ubuntu-latest
     steps:
+    - name: Harden Runner
+      uses: step-security/harden-runner@ebacdc22ef6c2cfb85ee5ded8f2e640f4c776dd5
+      with:
+        egress-policy: audit # TODO: change to 'egress-policy: block' after couple of runs
+
     - name: Setup Node.js environment
-      uses: actions/setup-node@v3.5.1
+      uses: actions/setup-node@8c91899e586c5b171469028077307d293428b516
       with:
         node-version: 16.x   
         
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8
     
     - name: Cache node modules
-      uses: actions/cache@v3.0.11
+      uses: actions/cache@9b0c1fce7a93df8e3bb8926b0d6e9d89e92f20a7
       env:
         cache-name: cache-node-modules
       with:
@@ -52,7 +60,7 @@ jobs:
       working-directory: contracts
 
     - name: Upload a build artifact
-      uses: actions/upload-artifact@v3.1.1
+      uses: actions/upload-artifact@83fd05a356d7e2593de66fc9913b3002723633cb
       with:    
         name: code-coverage-report    
         path: contracts/coverage
diff --git a/.github/workflows/deploy-bots.yml b/.github/workflows/deploy-bots.yml
index 883854c89..939f42cba 100644
--- a/.github/workflows/deploy-bots.yml
+++ b/.github/workflows/deploy-bots.yml
@@ -1,13 +1,21 @@
 on: [workflow_dispatch]
 
+permissions:  # added using https://github.com/step-security/secure-workflows
+  contents: read
+
 jobs:
   build-deploy:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-python@v4
-      - uses: aws-actions/setup-sam@v2
-      - uses: aws-actions/configure-aws-credentials@v1
+      - name: Harden Runner
+        uses: step-security/harden-runner@ebacdc22ef6c2cfb85ee5ded8f2e640f4c776dd5
+        with:
+          egress-policy: audit # TODO: change to 'egress-policy: block' after couple of runs
+
+      - uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8
+      - uses: actions/setup-python@13ae5bb136fac2878aff31522b9efb785519f984
+      - uses: aws-actions/setup-sam@8dbd164261576216897020cd750587e50e4d2136
+      - uses: aws-actions/configure-aws-credentials@67fbcbb121271f7775d2e7715933280b06314838
         with:
           aws-access-key-id: ${{ secrets.STAGING_AWS_ACCESS_KEY }}
           aws-secret-access-key: ${{ secrets.STAGING_AWS_SECRET_KEY }}