diff --git a/.github/actions/docker-image-size-tracker/action.yml b/.github/actions/docker-image-size-tracker/action.yml
index de5381d9d02c5..ea132c8a99c49 100644
--- a/.github/actions/docker-image-size-tracker/action.yml
+++ b/.github/actions/docker-image-size-tracker/action.yml
@@ -6,6 +6,9 @@ inputs:
   github-token:
     description: 'GitHub token for commenting on PRs'
     required: true
+  ci-pat:
+    description: 'GitHub token for committing to history branch'
+    required: true
   registry:
     description: 'Container registry (e.g., ghcr.io)'
     required: false
@@ -258,7 +261,9 @@ runs:
         cd /tmp/history-worktree
         git add "history/${timestamp}.json"
         git commit -m "Add measurement for ${timestamp} (${commit_sha:0:7})"
-        git config --global url.https://${{ inputs.github-token }}@github.com/.insteadOf https://github.com/
+        git config --global user.email "ci@rocket.chat"
+        git config --global user.name "rocketchat-ci[bot]"
+        git config --global url.https://${{ inputs.ci-pat }}@github.com/.insteadOf https://github.com/
         git push origin image-size-history
         cd -
 
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2727da790aaca..4a30ee885d98c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -454,6 +454,7 @@ jobs:
         uses: ./.github/actions/docker-image-size-tracker
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
+          ci-pat: ${{ secrets.CI_PAT }}
           registry: ghcr.io
           repository: ${{ needs.release-versions.outputs.lowercase-repo }}
           tag: ${{ needs.release-versions.outputs.gh-docker-tag }}