diff --git a/gocd/templates/pipelines/usage-accountant.libsonnet b/gocd/templates/pipelines/usage-accountant.libsonnet
index d1a9b88..94b2b55 100644
--- a/gocd/templates/pipelines/usage-accountant.libsonnet
+++ b/gocd/templates/pipelines/usage-accountant.libsonnet
@@ -45,6 +45,11 @@ function(region) {
           deploy: {
             timeout: 1200,
             elastic_profile_id: 'usage-accountant',
+            environment_variables: {
+              // k8s-deploy dispatches deployment workflows using GitHub App credentials.
+              GITHUB_APP_ID: '{{SECRET:[devinfra-github][app_id]}}',
+              GITHUB_APP_PRIVATE_KEY: '{{SECRET:[devinfra-github][private_key]}}',
+            },
             tasks: [
               gocdtasks.script(importstr '../bash/deploy.sh'),
             ],