1 files changed, 11 insertions, 5 deletions
diff --git a/pkgs/development/ocaml-modules/sedlex/2.nix b/pkgs/development/ocaml-modules/sedlex/2.nix
index b1a892d5b804..927acc1819eb 100644
--- a/pkgs/development/ocaml-modules/sedlex/2.nix
+++ b/pkgs/development/ocaml-modules/sedlex/2.nix
@@ -14,28 +14,33 @@ then throw "sedlex is not available for OCaml ${ocaml.version}"
 else
 
 let
+  unicodeVersion = "12.1.0";
+  baseUrl = "https://www.unicode.org/Public/${unicodeVersion}";
+
   DerivedCoreProperties = fetchurl {
-    url = "https://www.unicode.org/Public/12.1.0/ucd/DerivedCoreProperties.txt";
+    url = "${baseUrl}/ucd/DerivedCoreProperties.txt";
     sha256 = "0s6sn1yr9qmb2i6gf8dir2zpsbjv1frdfzy3i2yjylzvf637msx6";
   };
   DerivedGeneralCategory = fetchurl {
-    url = "https://www.unicode.org/Public/12.1.0/ucd/extracted/DerivedGeneralCategory.txt";
+    url = "${baseUrl}/ucd/extracted/DerivedGeneralCategory.txt";
     sha256 = "1rifzq9ba6c58dn0lrmcb5l5k4ksx3zsdkira3m5p6h4i2wriy3q";
   };
   PropList = fetchurl {
-    url = "https://www.unicode.org/Public/12.1.0/ucd/PropList.txt";
+    url = "${baseUrl}/ucd/PropList.txt";
     sha256 = "0gsb1jpj3mnqbjgbavi4l95gl6g4agq58j82km22fdfg63j3w3fk";
   };
 in
 buildDunePackage rec {
   pname = "sedlex";
-  version = "2.1";
+  version = "2.2";
+
+  useDune2 = true;
 
   src = fetchFromGitHub {
     owner = "ocaml-community";
     repo = "sedlex";
     rev = "v${version}";
-    sha256 = "05f6qa8x3vhpdz1fcnpqk37fpnyyq13icqsk2gww5idjnh6kng26";
+    sha256 = "18dwl2is5j26z6b1c47b81wvcpxw44fasppdadsrs9vsw63rwcm3";
   };
 
   propagatedBuildInputs = [
@@ -43,6 +48,7 @@ buildDunePackage rec {
   ];
 
   preBuild = ''
+    rm src/generator/data/dune
     ln -s ${DerivedCoreProperties} src/generator/data/DerivedCoreProperties.txt
     ln -s ${DerivedGeneralCategory} src/generator/data/DerivedGeneralCategory.txt
     ln -s ${PropList} src/generator/data/PropList.txt