diff --git a/.github/actions/check-linked-issue/README.md b/.github/actions/check-linked-issue/README.md
index df2beaf..0ef07f9 100644
--- a/.github/actions/check-linked-issue/README.md
+++ b/.github/actions/check-linked-issue/README.md
@@ -112,7 +112,7 @@ permissions:
 
 - `privateKey` (**required**): Private key for the `overture-check-linked-issue` GitHub App, used to generate an installation token for cross-repo GraphQL reads. Pass `${{ secrets.CHECK_LINKED_ISSUE_APP_PEM }}`. The value must include the full PEM block with a trailing newline.
 
-- `appId` (optional): GitHub App ID. Defaults to `2932845` (the [Overture Check Linked Issues app](https://github.com/organizations/OvertureMaps/settings/apps/overture-check-linked-issue)) and does not normally need to be overridden.
+- `clientId` (optional): GitHub App client ID. Defaults to `Iv23liJL38m6IaQFoD60`, the client ID of the [Overture Check Linked Issues app](https://github.com/organizations/OvertureMaps/settings/apps/overture-check-linked-issue) — GitHub accepts the numeric App ID here too. Does not normally need to be overridden.
 
 - `minimumLinkedIssues` (optional): Minimum number of linked issues required for the PR. Default is `1`. Set this input to require more than one linked issue:
 
diff --git a/.github/actions/check-linked-issue/action.yml b/.github/actions/check-linked-issue/action.yml
index e5d616c..0787219 100644
--- a/.github/actions/check-linked-issue/action.yml
+++ b/.github/actions/check-linked-issue/action.yml
@@ -10,10 +10,13 @@ inputs:
     description: Minimum number of linked issues required
     required: false
     default: 1
-  appId:
-    description: GitHub App ID used to generate an installation token for cross-repo linked issue reads
+  clientId:
+    description: >
+      GitHub App client ID used to generate an installation token for
+      cross-repo linked issue reads. The numeric App ID also works here,
+      as GitHub accepts either as the JWT issuer.
     required: false
-    default: "2932845" #https://github.com/organizations/OvertureMaps/settings/apps/overture-check-linked-issue
+    default: "Iv23liJL38m6IaQFoD60" #https://github.com/organizations/OvertureMaps/settings/apps/overture-check-linked-issue
   privateKey:
     description: >
       GitHub App private key used to generate an installation token.
@@ -50,7 +53,7 @@ runs:
       if: ${{ inputs.privateKey != '' }}
       uses: actions/create-github-app-token@bcd2ba49218906704ab6c1aa796996da409d3eb1 # v3.2.0 # zizmor: ignore[github-app,ref-version-mismatch] -- intentional: org-wide reusable workflow; dedicated GH App limits risk in lieu of per-repo scoping
       with:
-        app-id: ${{ inputs.appId }}
+        client-id: ${{ inputs.clientId }}
         private-key: ${{ inputs.privateKey }}
         owner: ${{ github.repository_owner }} # zizmor: ignore[github-app] -- intentional: org-wide reusable workflow; dedicated GH App limits risk in lieu of per-repo scoping