diff --git a/opam2web.opam b/opam2web.opam
index e5c54ea..1cbf0af 100644
--- a/opam2web.opam
+++ b/opam2web.opam
@@ -13,10 +13,10 @@ depends: [
   "cow" {= "2.3.0"}
   "js_of_ocaml" {>= "2.4.1" & < "3.3.0"} (* to update, and remove 3.3.0 restriction *)
   "js_of_ocaml-ppx"
-  "opam-core" {>= "2.0.0"}
-  "opam-format" {>= "2.0.0"}
-  "opam-state" {>= "2.0.0"}
-  "opam-client" {>= "2.0.0"}
+  "opam-core" {>= "2.1.0~beta"}
+  "opam-format" {>= "2.1.0~beta"}
+  "opam-state" {>= "2.1.0~beta"}
+  "opam-client" {>= "2.1.0~beta"}
   "cohttp-lwt-unix"
   "yojson" {>= "1.6.0"}
 ]
diff --git a/src/o2wPackage.ml b/src/o2wPackage.ml
index e5489ca..9f364db 100644
--- a/src/o2wPackage.ml
+++ b/src/o2wPackage.ml
@@ -168,6 +168,7 @@ let to_html ~prefix univ pkg =
   let {name; version} = pkg in
   let pkg = OpamPackage.create pkg.name pkg.version in
   let pkg_opam = OpamSwitchState.opam univ.st pkg in
+  let pkg_opam = OpamFileTools.sort_opam in
   let version_links =
     let version_set =
       OpamPackage.versions_of_name univ.st.packages pkg.name