diff --git a/.github/workflows/ocaml-lsp-compat.yml b/.github/workflows/ocaml-lsp-compat.yml
index afae9205b..fb1d73c2a 100644
--- a/.github/workflows/ocaml-lsp-compat.yml
+++ b/.github/workflows/ocaml-lsp-compat.yml
@@ -34,7 +34,7 @@ jobs:
         os:
           - ubuntu-latest
         ocaml-compiler:
-          - 5.2.x
+          - ocaml-base-compiler.5.3.0~alpha1
     # The type of runner that the job will run on
     runs-on: ${{ matrix.os }}