diff --git a/.github/actions/release/action.yml b/.github/actions/release/action.yml
index 662802f11..7208dab5f 100644
--- a/.github/actions/release/action.yml
+++ b/.github/actions/release/action.yml
@@ -9,14 +9,11 @@ inputs:
   bucket-name:
     description: S3 bucket name
     required: true
-  prod-deployment-hook-token:
-    description: Token for the webhook that triggers the deployment to production
+  promotions-token:
+    description: GitHub App token used to dispatch the production promotion workflow
     required: true
-  prod-deployment-hook-url:
-    description: URL of the webhook that triggers the deployment to production
-    required: true
-  react-app-rpc-token:
-    description: Infura RPC API token
+  promotions-repo:
+    description: Repository hosting the gated production promotion workflows (owner/name)
     required: true
   react-app-tenderly-org-name:
     description: Tenderly simulation organization name
@@ -59,8 +56,8 @@ runs:
         git tag -f last-release
       shell: bash
       env:
-        PROD_DEPLOYMENT_HOOK_TOKEN: ${{ inputs.prod-deployment-hook-token }}
-        PROD_DEPLOYMENT_HOOK_URL: ${{ inputs.prod-deployment-hook-url }}
+        GH_TOKEN: ${{ inputs.promotions-token }}
+        PROMOTIONS_REPO: ${{ inputs.promotions-repo }}
         BUCKET_NAME: ${{ inputs.bucket-name }}
         GITHUB_TOKEN: ${{ inputs.github-token }}
         REACT_APP_TENDERLY_ORG_NAME: ${{ inputs.react-app-tenderly-org-name }}
diff --git a/.github/workflows/deployment.yml b/.github/workflows/deployment.yml
index e0e064d0c..6b68d3e4d 100644
--- a/.github/workflows/deployment.yml
+++ b/.github/workflows/deployment.yml
@@ -140,12 +140,26 @@ jobs:
           role-to-assume: ${{ secrets.AWS_ROLE_TO_ASSUME_STAGING }}
           aws-region: ${{ secrets.AWS_DEFAULT_REGION }}
 
+      # Minted here because composite-action steps cannot read secrets directly.
+      # Installation tokens live 60 minutes and the dispatch is the last nx target;
+      # historical release runs complete in 3-9 minutes, so expiry is not a
+      # practical concern.
+      - name: Generate promotions repo token
+        id: promotions_token
+        continue-on-error: true
+        uses: actions/create-github-app-token@bcd2ba49218906704ab6c1aa796996da409d3eb1 # v3.2.0
+        with:
+          app-id: ${{ secrets.PROMOTIONS_APP_ID }}
+          private-key: ${{ secrets.PROMOTIONS_APP_PRIVATE_KEY }}
+          repositories: ${{ secrets.PROMOTIONS_REPO }}
+          permission-actions: write
+
       - name: 'Deploy production'
         uses: ./.github/actions/release
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
-          prod-deployment-hook-token: ${{ secrets.PROD_DEPLOYMENT_HOOK_TOKEN }}
-          prod-deployment-hook-url: ${{ secrets.PROD_DEPLOYMENT_HOOK_URL }}
+          promotions-token: ${{ steps.promotions_token.outputs.token }}
+          promotions-repo: ${{ github.repository_owner }}/${{ secrets.PROMOTIONS_REPO }}
           bucket-name: ${{ secrets.STAGING_BUCKET_NAME }}/releases
           react-app-tenderly-org-name: ${{ secrets.REACT_APP_TENDERLY_ORG_NAME }}
           react-app-tenderly-project-name: ${{ secrets.REACT_APP_TENDERLY_PROJECT_NAME }}
diff --git a/scripts/prepare_production_deployment.sh b/scripts/prepare_production_deployment.sh
index b41651476..eec2a5e01 100755
--- a/scripts/prepare_production_deployment.sh
+++ b/scripts/prepare_production_deployment.sh
@@ -3,17 +3,33 @@
 set -ev
 
 # Only:
-# - Security env variables are available.
-if [ -n "$PROD_DEPLOYMENT_HOOK_TOKEN" ] && [ -n "$PROD_DEPLOYMENT_HOOK_URL" ]
+# - GH_TOKEN and PROMOTIONS_REPO are available.
+if [ -n "$GH_TOKEN" ] && [ -n "$PROMOTIONS_REPO" ]
 then
   APP_NAME="$(basename $(pwd))"
   PACKAGE_VERSION=$(sed -nr 's/^\s*\"version": "([0-9]{1,}\.[0-9]{1,}.*)",$/\1/p' package.json)
-  curl --silent --output /dev/null --write-out "%{http_code}" -X POST \
-     -F token="$PROD_DEPLOYMENT_HOOK_TOKEN" \
-     -F ref=master \
-     -F "variables[TRIGGER_RELEASE_APP_NAME]=$APP_NAME" \
-     -F "variables[TRIGGER_RELEASE_COMMIT_TAG]=$PACKAGE_VERSION" \
-      $PROD_DEPLOYMENT_HOOK_URL
+  # tx-builder promotes via safe-tx-builder-tf (built from safe-wallet-monorepo
+  # releases) since 2026-03; dispatching it here would only trip the promotion
+  # workflow's app guard.
+  if [ "$APP_NAME" = "tx-builder" ]
+  then
+    echo "Skipping tx-builder: it deploys via safe-tx-builder-tf"
+    exit 0
+  fi
+  # --ref is required: without it gh resolves the default branch via GraphQL,
+  # which the app token (actions:write, metadata:read only) is not allowed to do.
+  # A failed dispatch must not fail this script: it runs mid nx-chain, before
+  # `git tag -f last-release`, and a hard exit would leave the release half-done.
+  # The error annotation stays visible on the run; the promotion can be
+  # dispatched manually from safe-production-promotions.
+  if ! gh workflow run react-apps-production.yml \
+    --repo "$PROMOTIONS_REPO" \
+    --ref main \
+    -f "app=$APP_NAME" \
+    -f "tag=$PACKAGE_VERSION"
+  then
+    echo "::error::Failed to dispatch production deployment for $APP_NAME $PACKAGE_VERSION"
+  fi
 else
-  echo "[ERROR] Production deployment could not be prepared"
+  echo "::warning::Production deployment could not be prepared: GH_TOKEN or PROMOTIONS_REPO missing"
 fi