diff --git a/.github/workflows/coding-standards.yml b/.github/workflows/coding-standards.yml
index c111159d66..009d5acf5a 100644
--- a/.github/workflows/coding-standards.yml
+++ b/.github/workflows/coding-standards.yml
@@ -152,3 +152,8 @@ jobs:
     uses: WordPress/wordpress-develop/.github/workflows/slack-notifications.yml@master
     needs: [ phpcs, jshint ]
     if: ${{ always() }}
+    with:
+      SLACK_GHA_SUCCESS_WEBHOOK: ${{ secrets.SLACK_GHA_SUCCESS_WEBHOOK }}
+      SLACK_GHA_CANCELLED_WEBHOOK: ${{ secrets.SLACK_GHA_CANCELLED_WEBHOOK }}
+      SLACK_GHA_FIXED_WEBHOOK: ${{ secrets.SLACK_GHA_FIXED_WEBHOOK }}
+      SLACK_GHA_FAILURE_WEBHOOK: ${{ secrets.SLACK_GHA_FAILURE_WEBHOOK }}
diff --git a/.github/workflows/end-to-end-tests.yml b/.github/workflows/end-to-end-tests.yml
index e74a0f36aa..fc41233eda 100644
--- a/.github/workflows/end-to-end-tests.yml
+++ b/.github/workflows/end-to-end-tests.yml
@@ -122,3 +122,8 @@ jobs:
     uses: WordPress/wordpress-develop/.github/workflows/slack-notifications.yml@master
     needs: [ e2e-tests ]
     if: ${{ always() }}
+    secrets:
+      SLACK_GHA_SUCCESS_WEBHOOK: ${{ secrets.SLACK_GHA_SUCCESS_WEBHOOK }}
+      SLACK_GHA_CANCELLED_WEBHOOK: ${{ secrets.SLACK_GHA_CANCELLED_WEBHOOK }}
+      SLACK_GHA_FIXED_WEBHOOK: ${{ secrets.SLACK_GHA_FIXED_WEBHOOK }}
+      SLACK_GHA_FAILURE_WEBHOOK: ${{ secrets.SLACK_GHA_FAILURE_WEBHOOK }}
diff --git a/.github/workflows/javascript-tests.yml b/.github/workflows/javascript-tests.yml
index 8373ff66d6..073f5bbd49 100644
--- a/.github/workflows/javascript-tests.yml
+++ b/.github/workflows/javascript-tests.yml
@@ -91,3 +91,8 @@ jobs:
     uses: WordPress/wordpress-develop/.github/workflows/slack-notifications.yml@master
     needs: [ test-js ]
     if: ${{ always() }}
+    secrets:
+      SLACK_GHA_SUCCESS_WEBHOOK: ${{ secrets.SLACK_GHA_SUCCESS_WEBHOOK }}
+      SLACK_GHA_CANCELLED_WEBHOOK: ${{ secrets.SLACK_GHA_CANCELLED_WEBHOOK }}
+      SLACK_GHA_FIXED_WEBHOOK: ${{ secrets.SLACK_GHA_FIXED_WEBHOOK }}
+      SLACK_GHA_FAILURE_WEBHOOK: ${{ secrets.SLACK_GHA_FAILURE_WEBHOOK }}
diff --git a/.github/workflows/php-compatibility.yml b/.github/workflows/php-compatibility.yml
index a6b38f7ff5..30b2f5f001 100644
--- a/.github/workflows/php-compatibility.yml
+++ b/.github/workflows/php-compatibility.yml
@@ -93,3 +93,8 @@ jobs:
     uses: WordPress/wordpress-develop/.github/workflows/slack-notifications.yml@master
     needs: [ php-compatibility ]
     if: ${{ always() }}
+    secrets:
+      SLACK_GHA_SUCCESS_WEBHOOK: ${{ secrets.SLACK_GHA_SUCCESS_WEBHOOK }}
+      SLACK_GHA_CANCELLED_WEBHOOK: ${{ secrets.SLACK_GHA_CANCELLED_WEBHOOK }}
+      SLACK_GHA_FIXED_WEBHOOK: ${{ secrets.SLACK_GHA_FIXED_WEBHOOK }}
+      SLACK_GHA_FAILURE_WEBHOOK: ${{ secrets.SLACK_GHA_FAILURE_WEBHOOK }}
diff --git a/.github/workflows/phpunit-tests.yml b/.github/workflows/phpunit-tests.yml
index 936c73ce63..22d98f3f4a 100644
--- a/.github/workflows/phpunit-tests.yml
+++ b/.github/workflows/phpunit-tests.yml
@@ -248,3 +248,8 @@ jobs:
     uses: WordPress/wordpress-develop/.github/workflows/slack-notifications.yml@master
     needs: [ test-php ]
     if: ${{ always() }}
+    secrets:
+      SLACK_GHA_SUCCESS_WEBHOOK: ${{ secrets.SLACK_GHA_SUCCESS_WEBHOOK }}
+      SLACK_GHA_CANCELLED_WEBHOOK: ${{ secrets.SLACK_GHA_CANCELLED_WEBHOOK }}
+      SLACK_GHA_FIXED_WEBHOOK: ${{ secrets.SLACK_GHA_FIXED_WEBHOOK }}
+      SLACK_GHA_FAILURE_WEBHOOK: ${{ secrets.SLACK_GHA_FAILURE_WEBHOOK }}
diff --git a/.github/workflows/slack-notifications.yml b/.github/workflows/slack-notifications.yml
index 6bb5c1f6d3..ce8696608f 100644
--- a/.github/workflows/slack-notifications.yml
+++ b/.github/workflows/slack-notifications.yml
@@ -7,6 +7,19 @@ name: Slack Notifications
 
 on:
   workflow_call:
+    secrets:
+      SLACK_GHA_SUCCESS_WEBHOOK:
+        description: 'The Slack webhook URL for a successful build.'
+        required: true
+      SLACK_GHA_CANCELLED_WEBHOOK:
+        description: 'The Slack webhook URL for a cancelled build.'
+        required: true
+      SLACK_GHA_FIXED_WEBHOOK:
+        description: 'The Slack webhook URL for a fixed build.'
+        required: true
+      SLACK_GHA_FAILURE_WEBHOOK:
+        description: 'The Slack webhook URL for a failed build.'
+        required: true
 
 jobs:
   # Gathers the details needed for Slack notifications.
diff --git a/.github/workflows/test-coverage.yml b/.github/workflows/test-coverage.yml
index a0abd2fb2a..7d3cdbcd3d 100644
--- a/.github/workflows/test-coverage.yml
+++ b/.github/workflows/test-coverage.yml
@@ -174,3 +174,8 @@ jobs:
     uses: WordPress/wordpress-develop/.github/workflows/slack-notifications.yml@master
     needs: [ test-coverage-report ]
     if: ${{ always() }}
+    secrets:
+      SLACK_GHA_SUCCESS_WEBHOOK: ${{ secrets.SLACK_GHA_SUCCESS_WEBHOOK }}
+      SLACK_GHA_CANCELLED_WEBHOOK: ${{ secrets.SLACK_GHA_CANCELLED_WEBHOOK }}
+      SLACK_GHA_FIXED_WEBHOOK: ${{ secrets.SLACK_GHA_FIXED_WEBHOOK }}
+      SLACK_GHA_FAILURE_WEBHOOK: ${{ secrets.SLACK_GHA_FAILURE_WEBHOOK }}
diff --git a/.github/workflows/test-npm.yml b/.github/workflows/test-npm.yml
index 2a121f8efb..d2af984d25 100644
--- a/.github/workflows/test-npm.yml
+++ b/.github/workflows/test-npm.yml
@@ -160,3 +160,8 @@ jobs:
     uses: WordPress/wordpress-develop/.github/workflows/slack-notifications.yml@master
     needs: [ test-npm, test-npm-macos ]
     if: ${{ always() }}
+    secrets:
+      SLACK_GHA_SUCCESS_WEBHOOK: ${{ secrets.SLACK_GHA_SUCCESS_WEBHOOK }}
+      SLACK_GHA_CANCELLED_WEBHOOK: ${{ secrets.SLACK_GHA_CANCELLED_WEBHOOK }}
+      SLACK_GHA_FIXED_WEBHOOK: ${{ secrets.SLACK_GHA_FIXED_WEBHOOK }}
+      SLACK_GHA_FAILURE_WEBHOOK: ${{ secrets.SLACK_GHA_FAILURE_WEBHOOK }}
diff --git a/.github/workflows/test-old-branches.yml b/.github/workflows/test-old-branches.yml
index 86b879ad79..5d19130b26 100644
--- a/.github/workflows/test-old-branches.yml
+++ b/.github/workflows/test-old-branches.yml
@@ -75,3 +75,8 @@ jobs:
     uses: WordPress/wordpress-develop/.github/workflows/slack-notifications.yml@master
     needs: [ dispatch-workflows-for-old-branches ]
     if: ${{ always() }}
+    secrets:
+      SLACK_GHA_SUCCESS_WEBHOOK: ${{ secrets.SLACK_GHA_SUCCESS_WEBHOOK }}
+      SLACK_GHA_CANCELLED_WEBHOOK: ${{ secrets.SLACK_GHA_CANCELLED_WEBHOOK }}
+      SLACK_GHA_FIXED_WEBHOOK: ${{ secrets.SLACK_GHA_FIXED_WEBHOOK }}
+      SLACK_GHA_FAILURE_WEBHOOK: ${{ secrets.SLACK_GHA_FAILURE_WEBHOOK }}