diff --git a/.github/workflows/labeller.yml b/.github/workflows/labeller.yml
index 104370a..5434d3f 100644
--- a/.github/workflows/labeller.yml
+++ b/.github/workflows/labeller.yml
@@ -4,7 +4,7 @@ on:
   issues:
     types:
       - opened
-  pull_request:
+  pull_request_target:
     types:
       - opened