diff --git a/.github/workflows/build-and-test.yml b/.github/workflows/build-and-test.yml
index c7181d6..24de651 100644
--- a/.github/workflows/build-and-test.yml
+++ b/.github/workflows/build-and-test.yml
@@ -16,26 +16,21 @@ jobs:
           # - macos-latest
           # - windows-latest
         ocaml-compiler:
-          - 4.05.x
-          - 4.06.x
-          - 4.07.x
-          - 4.08.x
-          - 4.09.x
-          - 4.10.x
-          - 4.11.x
-          - 4.12.x
-          - 4.13.x
           - 4.14.x
           - 5.0.x
+          - 5.1.x
+          - 5.2.x
+          - 5.3.x
+          - 5.4.x
 
     runs-on: ${{ matrix.os }}
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v5
 
       - name: Use OCaml ${{ matrix.ocaml-compiler }}
-        uses: ocaml/setup-ocaml@v2
+        uses: ocaml/setup-ocaml@v3
         with:
           ocaml-compiler: ${{ matrix.ocaml-compiler }}
           dune-cache: ${{ matrix.os != 'macos-latest' }}