diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 581b7a3..32d2515 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,7 +12,7 @@ jobs:
         os:
           - ubuntu-latest
         ocaml-compiler:
-          - 5.1.x
+          - 5.2.x
 
     runs-on: ${{ matrix.os }}