diff --git a/.github/workflows/interface-spec.yml b/.github/workflows/interface-spec.yml
index 9ff34ae0f6..0fb9de4922 100644
--- a/.github/workflows/interface-spec.yml
+++ b/.github/workflows/interface-spec.yml
@@ -1,6 +1,6 @@
 name: Interface Specification
 on:
-  pull_request:
+  pull_request_target:
     paths:
       - .github/workflows/interface-spec.yml
       - docs/references/http-gateway-protocol-spec.md