diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 005b9bbe..739dd467 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -1,18 +1,7 @@
 name: rust
 
 on:
-  workflow_call:
-    inputs:
-      cache_version:
-        type: string
-        default: v1
-      cargo_audit_version:
-        type: string
-        default: 0.20.0
-      cargo_audit_ignores:
-        type: string
-        default: ''
-        description: Comma-delimited list of RUSTSEC CVE identifiers to ignore during audit.
+  - pull_request
 
 env:
   RUSTC_WRAPPER: sccache