diff --git a/pkgs/development/ocaml-modules/uri/default.nix b/pkgs/development/ocaml-modules/uri/default.nix
index 6073411a24d2..0f3578806d83 100644
--- a/pkgs/development/ocaml-modules/uri/default.nix
+++ b/pkgs/development/ocaml-modules/uri/default.nix
@@ -1,24 +1,39 @@
-{ stdenv, fetchurl, buildDunePackage, ppx_sexp_conv, ounit
-, re, sexplib, stringext
+{ lib, fetchurl, buildDunePackage, ppx_sexp_conv, ounit
+, re, sexplib0, sexplib, stringext
+, legacy ? false
 }:
 
+let params =
+  if legacy then rec {
+    version = "1.9.6";
+    archive = version;
+    sha256 = "1m845rwd70wi4iijkrigyz939m1x84ba70hvv0d9sgk6971w4kz0";
+    inherit sexplib;
+  } else rec {
+    version = "2.2.0";
+    archive = "v${version}";
+    sha256 = "1q0xmc93l46dilxclkmai7w952bdi745rhvsx5vissaigcj9wbwi";
+    sexplib = sexplib0;
+  }
+; in
+
 buildDunePackage rec {
   pname = "uri";
-  version = "1.9.6";
+  inherit (params) version;
 
   src = fetchurl {
-    url = "https://github.com/mirage/ocaml-${pname}/releases/download/v${version}/${pname}-${version}.tbz";
-    sha256 = "1m845rwd70wi4iijkrigyz939m1x84ba70hvv0d9sgk6971w4kz0";
+    url = "https://github.com/mirage/ocaml-${pname}/releases/download/v${version}/${pname}-${params.archive}.tbz";
+    inherit (params) sha256;
   };
 
   buildInputs = [ ounit ];
-  propagatedBuildInputs = [ ppx_sexp_conv re sexplib stringext ];
+  propagatedBuildInputs = [ ppx_sexp_conv re params.sexplib stringext ];
   doCheck = true;
 
   meta = {
     homepage = "https://github.com/mirage/ocaml-uri";
     description = "RFC3986 URI parsing library for OCaml";
-    license = stdenv.lib.licenses.isc;
-    maintainers = [ stdenv.lib.maintainers.vbgl ];
+    license = lib.licenses.isc;
+    maintainers = [ lib.maintainers.vbgl ];
   };
 }
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index f79f6ea3c0ca..47d233a22878 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -68,6 +68,7 @@ let
         };
       };
       uri = uri.override {
+        legacy = true;
         inherit (janeStreet_0_9_0) ppx_sexp_conv sexplib;
       };
     };