diff --git a/.github/workflows/cd-opam.yml b/.github/workflows/cd-opam.yml
index 17750e79..e2063cbe 100644
--- a/.github/workflows/cd-opam.yml
+++ b/.github/workflows/cd-opam.yml
@@ -1,4 +1,5 @@
 on:
+  pull_request:
   release:
     types:
     - created