diff --git a/.ocamlformat b/.ocamlformat
index a275797..3849148 100644
--- a/.ocamlformat
+++ b/.ocamlformat
@@ -1,3 +1,4 @@
+version=0.24.1
 break-cases=toplevel
 break-infix-before-func=false
 break-infix=fit-or-vertical
diff --git a/dune-project b/dune-project
index 57bfd6f..8a3bd4e 100644
--- a/dune-project
+++ b/dune-project
@@ -18,7 +18,7 @@
   (dune :build)
   dune-build-info
   (ocaml-lsp-server :with-dev-setup)
-  (ocamlformat (and :with-dev-setup (>= 0.24) (< 0.25)))
+  (ocamlformat (and :with-dev-setup (= 0.24.1)))
   (odoc :with-doc)
   (ounit2 :with-test)
   yojson))
diff --git a/jsonschema2atd.opam b/jsonschema2atd.opam
index a251e4f..eb2e85c 100644
--- a/jsonschema2atd.opam
+++ b/jsonschema2atd.opam
@@ -15,7 +15,7 @@ depends: [
   "dune" {>= "3.0" & build}
   "dune-build-info"
   "ocaml-lsp-server" {with-dev-setup}
-  "ocamlformat" {with-dev-setup & >= "0.24" & < "0.25"}
+  "ocamlformat" {with-dev-setup & = "0.24.1"}
   "odoc" {with-doc}
   "ounit2" {with-test}
   "yojson"