diff --git a/.github/workflows/formatter.yml b/.github/workflows/formatter.yml
index 9b8b8c3f..9233c363 100644
--- a/.github/workflows/formatter.yml
+++ b/.github/workflows/formatter.yml
@@ -11,27 +11,27 @@ jobs:
     runs-on: [ubuntu-latest]
     steps:
       - name: Checkout PR head
-        uses: actions/checkout@v3
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         if: github.event_name == 'pull_request'
         with:
           repository: ${{ github.event.pull_request.head.repo.full_name }}
           ref: ${{ github.event.pull_request.head.ref }}
 
       - name: Checkout Repo 
-        uses: actions/checkout@v3
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         if: github.event_name == 'workflow_dispatch'
 
       - name: Get changed files
         id: changed-files
-        uses: tj-actions/changed-files@v46.0.1
+        uses: tj-actions/changed-files@9426d40962ed5378910ee2e21d5f8c6fcbf2dd96 # v47.0.6
         with:
           files: |
             **/*.py
 
       # This is used for forked PRs as write permissions are required to format files
       - name: Run and commit changes with `ruff format .` locally on your forked branch to fix errors if they appear
-        if: ${{ github.event.pull_request.head.repo.fork == true and steps.changed-files.outputs.all_changed_files != '' }}
-        uses: chartboost/ruff-action@v1
+        if: ${{ github.event.pull_request.head.repo.fork == true && steps.changed-files.outputs.all_changed_files != '' }}
+        uses: chartboost/ruff-action@e18ae971ccee1b2d7bbef113930f00c670b78da4 # v1.0.0
         id: ruff_formatter_suggestions
         with:
           args: format --diff --target-version py38
@@ -40,7 +40,7 @@ jobs:
       # This only runs if the PR is NOT from a forked repo
       - name: Format files using ruff
         if: ${{ github.event.pull_request.head.repo.fork == false }}
-        uses: chartboost/ruff-action@v1
+        uses: chartboost/ruff-action@e18ae971ccee1b2d7bbef113930f00c670b78da4 # v1.0.0
         id: ruff_formatter
         with:
           args: format