diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index b8351fd..453713e 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -27,7 +27,7 @@ jobs:
     strategy:
       matrix:
         operating-system: [ubuntu-latest]
-        ocaml-version: [5.3.0]
+        ocaml-version: [5.4.1]
     runs-on: ${{ matrix.operating-system }}
     steps:
     - uses: actions/checkout@v4