diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 1a9838c..191bcc2 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -13,7 +13,7 @@ jobs:
         ocaml-compiler:
           - 5.1.x
           - 5.2.x
-          - 5.3.0~beta2
+          - ocaml-base-compiler.5.3.0~beta2
 
     runs-on: ${{ matrix.os }}