diff --git a/pkgs/development/ocaml-modules/ubase/default.nix b/pkgs/development/ocaml-modules/ubase/default.nix
new file mode 100644
index 000000000000..daa7fc35617d
--- /dev/null
+++ b/pkgs/development/ocaml-modules/ubase/default.nix
@@ -0,0 +1,28 @@
+{
+  buildDunePackage,
+  fetchFromGitHub,
+  lib,
+}:
+
+buildDunePackage rec {
+  pname = "ubase";
+  version = "0.20";
+
+  minimalOCamlVersion = "4.14.0";
+
+  src = fetchFromGitHub {
+    owner = "sanette";
+    repo = "ubase";
+    tag = version;
+    sha256 = "sha256-zmYjWEk0r1h87RczCJu2tYlS79F/pAiBt16BplPmA7c=";
+  };
+
+  doCheck = true;
+
+  meta = {
+    description = "Remove accents from utf8 strings";
+    license = lib.licenses.gpl3;
+    homepage = "https://github.com/sanette/ubase";
+    maintainers = with lib.maintainers; [ mrdev023 ];
+  };
+}
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index 4784eff0e841..114d33c70567 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -2087,6 +2087,8 @@ let
 
         ### U ###
 
+        ubase = callPackage ../development/ocaml-modules/ubase { };
+
         uchar = callPackage ../development/ocaml-modules/uchar { };
 
         uecc = callPackage ../development/ocaml-modules/uecc { };