diff --git a/.github/actions/bootstrap/action.yaml b/.github/actions/bootstrap/action.yaml
index b294c90ae9f..8a68cd4972c 100644
--- a/.github/actions/bootstrap/action.yaml
+++ b/.github/actions/bootstrap/action.yaml
@@ -1,4 +1,5 @@
 name: "Bootstrap"
+
 description: "Bootstrap all tools and dependencies"
 inputs:
   go-version:
@@ -24,13 +25,13 @@ inputs:
 runs:
   using: "composite"
   steps:
-    - uses: actions/setup-go@v4
+    - uses: actions/setup-go@93397bea11091df50f3d7e59dc26a7711a8bcfbe #v4.1.0
       with:
         go-version: ${{ inputs.go-version }}
 
     - name: Restore tool cache
       id: tool-cache
-      uses: actions/cache@v3
+      uses: actions/cache@704facf57e6136b1bc63b828d79edcd491f0ee84 #v3.3.2
       with:
         path: ${{ github.workspace }}/.tmp
         key: ${{ inputs.cache-key-prefix }}-${{ runner.os }}-tool-${{ hashFiles('Makefile') }}
@@ -40,7 +41,7 @@ runs:
     - name: Restore go module cache
       id: go-mod-cache
       if: inputs.use-go-cache == 'true'
-      uses: actions/cache@v3
+      uses: actions/cache@704facf57e6136b1bc63b828d79edcd491f0ee84 #v3.3.2
       with:
         path: |
           ~/go/pkg/mod
@@ -56,7 +57,7 @@ runs:
     - name: Restore go build cache
       id: go-cache
       if: inputs.use-go-cache == 'true'
-      uses: actions/cache@v3
+      uses: actions/cache@704facf57e6136b1bc63b828d79edcd491f0ee84 #v3.3.2
       with:
         path: |
           ~/.cache/go-build
diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index eb2c65955e7..271775b7b22 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -1,10 +1,12 @@
 version: 2
 updates:
-  - package-ecosystem: "github-actions"
+  - package-ecosystem: gomod
     directory: "/"
     schedule:
-      interval: daily
-  - package-ecosystem: "gomod"
+      interval: "daily"
+    open-pull-requests-limit: 10
+  - package-ecosystem: "github-actions"
     directory: "/"
     schedule:
-      interval: daily
+      interval: "daily"
+    open-pull-requests-limit: 10
\ No newline at end of file
diff --git a/.github/workflows/benchmark-testing.yaml b/.github/workflows/benchmark-testing.yaml
index 50f5d390b10..980d637f2ec 100644
--- a/.github/workflows/benchmark-testing.yaml
+++ b/.github/workflows/benchmark-testing.yaml
@@ -4,6 +4,8 @@ on:
   workflow_dispatch:
   pull_request:
 
+permissons: read-all
+
 jobs:
 
   Benchmark-Test:
@@ -13,13 +15,14 @@ jobs:
     # we also want to run on push such that merges to main are recorded to the cache. For this reason we don't filter
     # the job by event.
     steps:
-      - uses: actions/checkout@v4
+      - name: Checkout code
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4.0.0
 
       - name: Bootstrap environment
         uses: ./.github/actions/bootstrap
 
       - name: Restore base benchmark result
-        uses: actions/cache@v3
+        uses: actions/cache@704facf57e6136b1bc63b828d79edcd491f0ee84 #v3.3.2
         with:
           path: test/results/benchmark-main.txt
           # use base sha for PR or new commit hash for main push in benchmark result key
@@ -35,13 +38,13 @@ jobs:
           OUTPUT="${OUTPUT//$'\r'/'%0D'}" # URL encode all '\r' characters
           echo "result=$OUTPUT" >> $GITHUB_OUTPUT
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@a8a3f3ad30e3422c9c7b888a15615d19a852ae32 # v3.1.3
         with:
           name: benchmark-test-results
           path: test/results/**/*
 
       - name: Update PR benchmark results comment
-        uses: marocchino/sticky-pull-request-comment@v2
+        uses: marocchino/sticky-pull-request-comment@efaaab3fd41a9c3de579aba759d2552635e590fd #v2.8.0
         continue-on-error: true
         with:
           header: benchmark
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 0b2d988fa8f..bb45b67a8e2 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -14,11 +14,18 @@ on:
   schedule:
     - cron: '0 0 * * 3'
 
+permissions:
+  contents: read
+
 jobs:
   analyze:
     name: Analyze
     runs-on: ubuntu-latest
 
+    permissions:
+      # required for all workflow
+      security-events: write
+
     strategy:
       fail-fast: false
       matrix:
@@ -30,16 +37,16 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac #v4.0.0
 
     - name: Install Go
-      uses: actions/setup-go@v4
+      uses: actions/setup-go@93397bea11091df50f3d7e59dc26a7711a8bcfbe #v4.1.0
       with:
         go-version-file: go.mod
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
-      uses: github/codeql-action/init@v2
+      uses: github/codeql-action/init@04daf014b50eaf774287bf3f0f1869d4b4c4b913 #v2.21.7
       with:
         languages: ${{ matrix.language }}
         # If you wish to specify custom queries, you can do so here or in a config file.
@@ -50,7 +57,7 @@ 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@04daf014b50eaf774287bf3f0f1869d4b4c4b913 #v2.21.7
 
     # ℹ️ Command-line programs to run using the OS shell.
     # 📚 https://git.io/JvXDl
@@ -64,4 +71,4 @@ jobs:
     #   make release
 
     - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v2
+      uses: github/codeql-action/analyze@04daf014b50eaf774287bf3f0f1869d4b4c4b913 #v2.21.7
diff --git a/.github/workflows/oss-project-board-add.yaml b/.github/workflows/oss-project-board-add.yaml
index b0d1fca007a..0472de8e5de 100644
--- a/.github/workflows/oss-project-board-add.yaml
+++ b/.github/workflows/oss-project-board-add.yaml
@@ -1,5 +1,8 @@
 name: Add to OSS board
 
+permissions:
+  contents: read
+
 on:
   issues:
     types:
@@ -9,7 +12,6 @@ on:
       - labeled
 
 jobs:
-
   run:
     uses: "anchore/workflows/.github/workflows/oss-project-board-add.yaml@main"
     secrets:
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index a76247ccf85..4596748e80e 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -1,4 +1,8 @@
 name: "Release"
+
+permissions:
+  contents: read
+
 on:
   workflow_dispatch:
     inputs:
@@ -14,7 +18,7 @@ jobs:
     environment: release
     runs-on: ubuntu-20.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac #v4.0.0
 
       - name: Check if tag already exists
         # note: this will fail if the tag already exists
@@ -23,7 +27,7 @@ jobs:
           git tag ${{ github.event.inputs.version }}
 
       - name: Check static analysis results
-        uses: fountainhead/action-wait-for-check@v1.1.0
+        uses: fountainhead/action-wait-for-check@297be350cf8393728ea4d4b39435c7d7ae167c93 # v1.1.0
         id: static-analysis
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
@@ -32,7 +36,7 @@ jobs:
           ref: ${{ github.event.pull_request.head.sha || github.sha }}
 
       - name: Check unit test results
-        uses: fountainhead/action-wait-for-check@v1.1.0
+        uses: fountainhead/action-wait-for-check@297be350cf8393728ea4d4b39435c7d7ae167c93 # v1.1.0
         id: unit
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
@@ -41,7 +45,7 @@ jobs:
           ref: ${{ github.event.pull_request.head.sha || github.sha }}
 
       - name: Check integration test results
-        uses: fountainhead/action-wait-for-check@v1.1.0
+        uses: fountainhead/action-wait-for-check@297be350cf8393728ea4d4b39435c7d7ae167c93 # v1.1.0
         id: integration
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
@@ -50,7 +54,7 @@ jobs:
           ref: ${{ github.event.pull_request.head.sha || github.sha }}
 
       - name: Check acceptance test results (linux)
-        uses: fountainhead/action-wait-for-check@v1.1.0
+        uses: fountainhead/action-wait-for-check@297be350cf8393728ea4d4b39435c7d7ae167c93 # v1.1.0
         id: acceptance-linux
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
@@ -59,7 +63,7 @@ jobs:
           ref: ${{ github.event.pull_request.head.sha || github.sha }}
 
       - name: Check acceptance test results (mac)
-        uses: fountainhead/action-wait-for-check@v1.1.0
+        uses: fountainhead/action-wait-for-check@297be350cf8393728ea4d4b39435c7d7ae167c93 # v1.1.0
         id: acceptance-mac
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
@@ -68,7 +72,7 @@ jobs:
           ref: ${{ github.event.pull_request.head.sha || github.sha }}
 
       - name: Check cli test results (linux)
-        uses: fountainhead/action-wait-for-check@v1.1.0
+        uses: fountainhead/action-wait-for-check@297be350cf8393728ea4d4b39435c7d7ae167c93 # v1.1.0
         id: cli-linux
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
@@ -94,7 +98,7 @@ jobs:
       contents: write
       packages: write
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac #v4.0.0
         with:
           fetch-depth: 0
 
@@ -105,13 +109,13 @@ jobs:
           build-cache-key-prefix: "snapshot"
 
       - name: Login to Docker Hub
-        uses: docker/login-action@v3
+        uses: docker/login-action@343f7c4344506bcbf9b4de18042ae17996df046d  #v3.0.0
         with:
           username: ${{ secrets.TOOLBOX_DOCKER_USER }}
           password: ${{ secrets.TOOLBOX_DOCKER_PASS }}
 
       - name: Login to GitHub Container Registry
-        uses: docker/login-action@v3
+        uses: docker/login-action@343f7c4344506bcbf9b4de18042ae17996df046d  #v3.0.0
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
@@ -141,12 +145,12 @@ jobs:
           AWS_ACCESS_KEY_ID: ${{ secrets.TOOLBOX_AWS_ACCESS_KEY_ID }}
           AWS_SECRET_ACCESS_KEY: ${{ secrets.TOOLBOX_AWS_SECRET_ACCESS_KEY }}
 
-      - uses: anchore/sbom-action@v0
+      - uses: anchore/sbom-action@78fc58e266e87a38d4194b2137a3d4e9bcaf7ca1 #v0.14.3
         continue-on-error: true
         with:
           artifact-name: sbom.spdx.json
 
-      - uses: 8398a7/action-slack@v3
+      - uses: 8398a7/action-slack@49aa08e51e8782f49c601d79ec72d07fd39a4612 #v3.15.1
         continue-on-error: true
         with:
           status: ${{ job.status }}
@@ -156,7 +160,7 @@ jobs:
           SLACK_WEBHOOK_URL: ${{ secrets.SLACK_TOOLBOX_WEBHOOK_URL }}
         if: ${{ success() }}
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@a8a3f3ad30e3422c9c7b888a15615d19a852ae32 #v3.1.3
         with:
           name: artifacts
           path: dist/**/*
diff --git a/.github/workflows/update-bootstrap-tools.yml b/.github/workflows/update-bootstrap-tools.yml
index bdf133179e7..7396258f90f 100644
--- a/.github/workflows/update-bootstrap-tools.yml
+++ b/.github/workflows/update-bootstrap-tools.yml
@@ -9,14 +9,17 @@ env:
   GO_VERSION: "1.21.x"
   GO_STABLE_VERSION: true
 
+permissions:
+  contents: read
+
 jobs:
   update-bootstrap-tools:
     runs-on: ubuntu-latest
     if: github.repository == 'anchore/syft' # only run for main repo
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac #v4.0.0
 
-      - uses: actions/setup-go@v4
+      - uses: actions/setup-go@93397bea11091df50f3d7e59dc26a7711a8bcfbe #v4.1.0
         with:
           go-version: ${{ env.GO_VERSION }}
           stable: ${{ env.GO_STABLE_VERSION }}
@@ -55,13 +58,13 @@ jobs:
           echo "GLOW=GLOW_LATEST_VERSION" >> $GITHUB_OUTPUT
         id: latest-versions
 
-      - uses: tibdex/github-app-token@v2
+      - uses: tibdex/github-app-token@0914d50df753bbc42180d982a6550f195390069f #v2.0.0
         id: generate-token
         with:
           app_id: ${{ secrets.TOKEN_APP_ID }}
           private_key: ${{ secrets.TOKEN_APP_PRIVATE_KEY }}
 
-      - uses: peter-evans/create-pull-request@v5
+      - uses: peter-evans/create-pull-request@153407881ec5c347639a548ade7d8ad1d6740e38 #v5.0.2
         with:
           signoff: true
           delete-branch: true
diff --git a/.github/workflows/update-cpe-dictionary-index.yml b/.github/workflows/update-cpe-dictionary-index.yml
index fb165929376..c956a80f550 100644
--- a/.github/workflows/update-cpe-dictionary-index.yml
+++ b/.github/workflows/update-cpe-dictionary-index.yml
@@ -5,6 +5,9 @@ on:
 
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 env:
   GO_VERSION: "1.21.x"
   GO_STABLE_VERSION: true
@@ -16,7 +19,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: actions/setup-go@v4
+      - uses: actions/setup-go@3df4ab11eba7bda6032a0b82a6bb43b11571feac #v4.0.0
         with:
           go-version: ${{ env.GO_VERSION }}
           stable: ${{ env.GO_STABLE_VERSION }}
@@ -24,13 +27,13 @@ jobs:
       - run: |
           make generate-cpe-dictionary-index
 
-      - uses: tibdex/github-app-token@v2
+      - uses: tibdex/github-app-token@0914d50df753bbc42180d982a6550f195390069f #v2.0.0
         id: generate-token
         with:
           app_id: ${{ secrets.TOKEN_APP_ID }}
           private_key: ${{ secrets.TOKEN_APP_PRIVATE_KEY }}
 
-      - uses: peter-evans/create-pull-request@v5
+      - uses: peter-evans/create-pull-request@153407881ec5c347639a548ade7d8ad1d6740e38 #v5.0.2
         with:
           signoff: true
           delete-branch: true
diff --git a/.github/workflows/update-stereoscope-release.yml b/.github/workflows/update-stereoscope-release.yml
index bd4e74b5c3e..f1fe9883122 100644
--- a/.github/workflows/update-stereoscope-release.yml
+++ b/.github/workflows/update-stereoscope-release.yml
@@ -9,14 +9,17 @@ env:
   GO_VERSION: "1.21.x"
   GO_STABLE_VERSION: true
 
+permissions:
+  contents: read
+
 jobs:
   upgrade-stereoscope:
     runs-on: ubuntu-latest
     if: github.repository == 'anchore/syft' # only run for main repo
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac #v4.0.0
 
-      - uses: actions/setup-go@v4
+      - uses: actions/setup-go@93397bea11091df50f3d7e59dc26a7711a8bcfbe #v4.1.0
         with:
           go-version: ${{ env.GO_VERSION }}
           stable: ${{ env.GO_STABLE_VERSION }}
@@ -32,13 +35,13 @@ jobs:
           echo "LATEST_VERSION=$LATEST_VERSION" >> $GITHUB_OUTPUT
         id: latest-version
 
-      - uses: tibdex/github-app-token@v2
+      - uses: tibdex/github-app-token@0914d50df753bbc42180d982a6550f195390069f #v2.0.0
         id: generate-token
         with:
           app_id: ${{ secrets.TOKEN_APP_ID }}
           private_key: ${{ secrets.TOKEN_APP_PRIVATE_KEY }}
 
-      - uses: peter-evans/create-pull-request@v5
+      - uses: peter-evans/create-pull-request@153407881ec5c347639a548ade7d8ad1d6740e38 #v5.0.2
         with:
           signoff: true
           delete-branch: true
diff --git a/.github/workflows/validations.yaml b/.github/workflows/validations.yaml
index 36502c1332d..8a20bae14a6 100644
--- a/.github/workflows/validations.yaml
+++ b/.github/workflows/validations.yaml
@@ -7,14 +7,16 @@ on:
     branches:
       - main
 
-jobs:
+permissions:
+    contents: read
 
+jobs:
   Static-Analysis:
     # Note: changing this job name requires making the same update in the .github/workflows/release.yaml pipeline
     name: "Static analysis"
     runs-on: ubuntu-20.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac #v4.0.0
 
       - name: Bootstrap environment
         uses: ./.github/actions/bootstrap
@@ -28,37 +30,37 @@ jobs:
     name: "Unit tests"
     runs-on: ubuntu-20.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac #v4.0.0
 
       - name: Bootstrap environment
         uses: ./.github/actions/bootstrap
 
       - name: Restore Java test-fixture cache
-        uses: actions/cache@v3
+        uses: actions/cache@704facf57e6136b1bc63b828d79edcd491f0ee84 #v3.3.2
         with:
           path: syft/pkg/cataloger/java/test-fixtures/java-builds/packages
           key: ${{ runner.os }}-unit-java-cache-${{ hashFiles( 'syft/pkg/cataloger/java/test-fixtures/java-builds/cache.fingerprint' ) }}
 
       - name: Restore RPM test-fixture cache
-        uses: actions/cache@v3
+        uses: actions/cache@704facf57e6136b1bc63b828d79edcd491f0ee84 #v3.3.2
         with:
           path: syft/pkg/cataloger/rpm/test-fixtures/rpms
           key: ${{ runner.os }}-unit-rpm-cache-${{ hashFiles( 'syft/pkg/cataloger/rpm/test-fixtures/rpms.fingerprint' ) }}
 
       - name: Restore go binary test-fixture cache
-        uses: actions/cache@v3
+        uses: actions/cache@704facf57e6136b1bc63b828d79edcd491f0ee84 #v3.3.2
         with:
           path: syft/pkg/cataloger/golang/test-fixtures/archs/binaries
           key: ${{ runner.os }}-unit-go-binaries-cache-${{ hashFiles( 'syft/pkg/cataloger/golang/test-fixtures/archs/binaries.fingerprint' ) }}
 
       - name: Restore binary cataloger test-fixture cache
-        uses: actions/cache@v3
+        uses: actions/cache@704facf57e6136b1bc63b828d79edcd491f0ee84 #v3.3.2
         with:
           path: syft/pkg/cataloger/binary/test-fixtures/classifiers/dynamic
           key: ${{ runner.os }}-unit-binary-cataloger-cache-${{ hashFiles( 'syft/pkg/cataloger/binary/test-fixtures/cache.fingerprint' ) }}
 
       - name: Restore Kernel test-fixture cache
-        uses: actions/cache@v3
+        uses: actions/cache@704facf57e6136b1bc63b828d79edcd491f0ee84 #v3.3.2
         with:
           path: syft/pkg/cataloger/kernel/test-fixtures/cache
           key: ${{ runner.os }}-unit-kernel-cache-${{ hashFiles( 'syft/pkg/cataloger/kernel/test-fixtures/cache.fingerprint' ) }}
@@ -72,7 +74,7 @@ jobs:
     name: "Integration tests"
     runs-on: ubuntu-20.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac #v4.0.0
 
       - name: Bootstrap environment
         uses: ./.github/actions/bootstrap
@@ -81,7 +83,7 @@ jobs:
         run: make validate-cyclonedx-schema
 
       - name: Restore integration test cache
-        uses: actions/cache@v3
+        uses: actions/cache@704facf57e6136b1bc63b828d79edcd491f0ee84 #v3.3.2
         with:
           path: ${{ github.workspace }}/test/integration/test-fixtures/cache
           key: ${{ runner.os }}-integration-test-cache-${{ hashFiles('test/integration/test-fixtures/cache.fingerprint') }}
@@ -94,7 +96,7 @@ jobs:
     name: "Build snapshot artifacts"
     runs-on: ubuntu-20.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac #v4.0.0
 
       - name: Bootstrap environment
         uses: ./.github/actions/bootstrap
@@ -113,7 +115,7 @@ jobs:
       # why not use actions/upload-artifact? It is very slow (3 minutes to upload ~600MB of data, vs 10 seconds with this approach).
       # see https://github.com/actions/upload-artifact/issues/199 for more info
       - name: Upload snapshot artifacts
-        uses: actions/cache/save@v3
+        uses: actions/cache/save@704facf57e6136b1bc63b828d79edcd491f0ee84 #v3.3.2
         with:
           path: snapshot
           key: snapshot-build-${{ github.run_id }}
@@ -125,10 +127,10 @@ jobs:
     needs: [Build-Snapshot-Artifacts]
     runs-on: ubuntu-20.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac #v4.0.0
 
       - name: Download snapshot build
-        uses: actions/cache/restore@v3
+        uses: actions/cache/restore@704facf57e6136b1bc63b828d79edcd491f0ee84 #v3.3.2
         with:
           path: snapshot
           key: snapshot-build-${{ github.run_id }}
@@ -138,7 +140,7 @@ jobs:
 
       - name: Restore install.sh test image cache
         id: install-test-image-cache
-        uses: actions/cache@v3
+        uses: actions/cache@704facf57e6136b1bc63b828d79edcd491f0ee84 #v3.3.2
         with:
           path: ${{ github.workspace }}/test/install/cache
           key: ${{ runner.os }}-install-test-image-cache-${{ hashFiles('test/install/cache.fingerprint') }}
@@ -161,17 +163,17 @@ jobs:
     needs: [Build-Snapshot-Artifacts]
     runs-on: macos-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac #v4.0.0
 
       - name: Download snapshot build
-        uses: actions/cache/restore@v3
+        uses: actions/cache/restore@704facf57e6136b1bc63b828d79edcd491f0ee84 #v3.3.2
         with:
           path: snapshot
           key: snapshot-build-${{ github.run_id }}
 
       - name: Restore docker image cache for compare testing
         id: mac-compare-testing-cache
-        uses: actions/cache@v3
+        uses: actions/cache@704facf57e6136b1bc63b828d79edcd491f0ee84 #v3.3.2
         with:
           path: image.tar
           key: ${{ runner.os }}-${{ hashFiles('test/compare/mac.sh') }}
@@ -189,19 +191,19 @@ jobs:
     needs: [Build-Snapshot-Artifacts]
     runs-on: ubuntu-20.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac #v4.0.0
 
       - name: Bootstrap environment
         uses: ./.github/actions/bootstrap
 
       - name: Restore CLI test-fixture cache
-        uses: actions/cache@v3
+        uses: actions/cache@704facf57e6136b1bc63b828d79edcd491f0ee84 #v3.3.2
         with:
           path: ${{ github.workspace }}/test/cli/test-fixtures/cache
           key: ${{ runner.os }}-cli-test-cache-${{ hashFiles('test/cli/test-fixtures/cache.fingerprint') }}
 
       - name: Download snapshot build
-        uses: actions/cache/restore@v3
+        uses: actions/cache/restore@704facf57e6136b1bc63b828d79edcd491f0ee84 #v3.3.2
         with:
           path: snapshot
           key: snapshot-build-${{ github.run_id }}