diff --git a/.github/workflows/compat.yml b/.github/workflows/compat.yml
deleted file mode 100644
index fe544ef2..00000000
--- a/.github/workflows/compat.yml
+++ /dev/null
@@ -1,36 +0,0 @@
-name: compat
-
-on:
-  push:
-    branches:
-      - master
-  pull_request:
-
-jobs:
-  run:
-    name: build
-    strategy:
-      fail-fast: true
-      matrix:
-        os:
-            - ubuntu-latest
-        ocaml-compiler:
-            - '4.03.x'
-            - '4.06.x'
-            - '4.07.x'
-            - '4.08.x'
-            - '4.14.x'
-            - '5.0.x'
-            - 'ocaml-variants.5.0.0+options,ocaml-option-bytecode-only'
-
-    runs-on: ${{ matrix.os }}
-    steps:
-      - uses: actions/checkout@main
-      - name: Use OCaml ${{ matrix.ocaml-compiler }}
-        uses: ocaml/setup-ocaml@v2
-        with:
-          ocaml-compiler: ${{ matrix.ocaml-compiler }}
-          dune-cache: true
-
-      - run: opam install containers containers-data containers-thread --deps-only
-      - run: opam exec -- dune build '@install'
diff --git a/.github/workflows/gh-pages.yml b/.github/workflows/gh-pages.yml
index e158a9dd..261a48d8 100644
--- a/.github/workflows/gh-pages.yml
+++ b/.github/workflows/gh-pages.yml
@@ -15,7 +15,7 @@ jobs:
       - name: Use OCaml
         uses: ocaml/setup-ocaml@v2
         with:
-          ocaml-compiler: '4.14.x'
+          ocaml-compiler: '4.14'
           dune-cache: false
 
       - name: Deps
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index a5287b84..b40b35bf 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -17,9 +17,9 @@ jobs:
             - ubuntu-latest
               #- windows-latest
         ocaml-compiler:
-            - '4.03.x'
-            - '4.14.x'
-            - '5.0.x'
+            - '4.08'
+            - '4.14'
+            - '5.0'
             - 'ocaml-variants.5.0.0+options,ocaml-option-bytecode-only'
 
     runs-on: ${{ matrix.os }}