diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 2df7878..29c279f 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -5,9 +5,12 @@ name: "Upload SARIF"
 on:
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: cx-public-ubuntu-x64
     permissions:
       # required for all workflows
       security-events: write
@@ -17,9 +20,9 @@ jobs:
     steps:
       # This step checks out a copy of your repository.
       - name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@ee0669bd1cc54295c223e0bb666b733df41de1c5 # v2.7.0
       - name: Upload SARIF file
-        uses: github/codeql-action/upload-sarif@v1
+        uses: github/codeql-action/upload-sarif@231aa2c8a89117b126725a0e11897209b7118144 # v1.1.39
         with:
           # Path to SARIF file relative to the root of the repository
           sarif_file: cx_result.sarif
diff --git a/.github/workflows/checkmarx.yml b/.github/workflows/checkmarx.yml
index 50d7791..ab1bca8 100644
--- a/.github/workflows/checkmarx.yml
+++ b/.github/workflows/checkmarx.yml
@@ -5,13 +5,13 @@ on: [pull_request,workflow_dispatch]
 
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: cx-public-ubuntu-x64
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@ee0669bd1cc54295c223e0bb666b733df41de1c5 # v2.7.0
       
       - name: Checkmarx AST CLI Action
-        uses: checkmarx/ast-github-action@main
+        uses: checkmarx/ast-github-action@dab12e5276a3025532f9723601ec38a4b7a37ed5 # main
         with:
           base_uri: ${{ secrets.BASE_URL }}
           cx_tenant: ${{ secrets.TENANT }}
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index f45615f..d54edfe 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -14,10 +14,13 @@ name: "CodeQL"
 on:
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 jobs:
   analyze:
     name: Analyze
-    runs-on: ubuntu-latest
+    runs-on: cx-public-ubuntu-x64
     permissions:
       actions: read
       contents: read
@@ -32,11 +35,11 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
-      uses: github/codeql-action/init@v2
+      uses: github/codeql-action/init@b8d3b6e8af63cde30bdc382c0bc28114f4346c88 # v2.28.1
       with:
         languages: ${{ matrix.language }}
         # If you wish to specify custom queries, you can do so here or in a config file.
@@ -50,7 +53,7 @@ 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@b8d3b6e8af63cde30bdc382c0bc28114f4346c88 # v2.28.1
 
     # ℹ️ Command-line programs to run using the OS shell.
     # 📚 See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsrun
@@ -63,4 +66,4 @@ jobs:
     #   ./location_of_script_within_repo/buildscript.sh
 
     - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v2
+      uses: github/codeql-action/analyze@b8d3b6e8af63cde30bdc382c0bc28114f4346c88 # v2.28.1
diff --git a/.github/workflows/one-scan.yml b/.github/workflows/one-scan.yml
index 0da51ad..57414a2 100644
--- a/.github/workflows/one-scan.yml
+++ b/.github/workflows/one-scan.yml
@@ -11,12 +11,12 @@ on:
 jobs:
   cx-scan:
     name: Checkmarx One Scan
-    runs-on: ubuntu-latest
+    runs-on: cx-public-ubuntu-x64
     steps:
       - name: Checkout
         uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
       - name: Checkmarx One CLI Action
-        uses: checkmarx/ast-github-action@daniel-test
+        uses: checkmarx/ast-github-action@5d1bb08e8f5c881087053f97047aa320a97234a1 # daniel-test
         with:
           base_uri: ${{ secrets.AST_RND_SCANS_BASE_URI }}
           cx_tenant: ${{ secrets.AST_RND_SCANS_TENANT }}