diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index fb8daa9..0a73e77 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -56,6 +56,6 @@ jobs:
           dune-cache: true
           allow-prerelease-opam: true
 
-      - run: opam install ocamlformat.0.26.2
+      - run: opam install ocamlformat.0.27.0
       - run: opam exec -- make format-check