diff --git a/ssl.opam b/ssl.opam
index 6a2f74c..1b2b57b 100644
--- a/ssl.opam
+++ b/ssl.opam
@@ -7,7 +7,7 @@ dev-repo: "git+https://github.com/savonet/ocaml-ssl.git"
 bug-reports: "https://github.com/savonet/ocaml-ssl/issues"
 license: "LGPL-2.1-only WITH OCaml-LGPL-linking-exception"
 build: [
-  ["dune" "subst"] {pinned}
+  ["dune" "subst"] {dev}
   ["dune" "build" "-p" name "-j" jobs]
 ]
 depends: [