diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index febd091d..1540b6bd 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -19,9 +19,9 @@ jobs:
             - ubuntu-latest
             - windows-latest
         ocaml-compiler:
-            - '4.03.0'
-            - '4.08.1'
-            - '4.12.1'
+            - '4.03.x'
+            - '4.08.x'
+            - '4.12.x'
 
     runs-on: ${{ matrix.os }}
     steps: