diff --git a/.github/workflows/binder-badge.yml b/.github/workflows/binder-badge.yml
index a5fa544..85ccd14 100644
--- a/.github/workflows/binder-badge.yml
+++ b/.github/workflows/binder-badge.yml
@@ -2,6 +2,8 @@ name: Binder Badge
 on:
   pull_request:
     types: [opened, synchronize]
+  pull_request_target:
+    types: [opened, synchronize]
 jobs:
   binder:
     runs-on: ubuntu-latest