diff --git a/pkgs/development/python-modules/identify/default.nix b/pkgs/development/python-modules/identify/default.nix
index 37e5f5bcb8a5..fed8ddd419c0 100644
--- a/pkgs/development/python-modules/identify/default.nix
+++ b/pkgs/development/python-modules/identify/default.nix
@@ -1,14 +1,15 @@
 { lib
 , buildPythonPackage
+, editdistance-s
 , fetchFromGitHub
 , pytestCheckHook
-, editdistance-s
 , pythonOlder
+, ukkonen
 }:
 
 buildPythonPackage rec {
   pname = "identify";
-  version = "2.3.7";
+  version = "2.4.0";
   format = "setuptools";
 
   disabled = pythonOlder "3.7";
@@ -17,12 +18,13 @@ buildPythonPackage rec {
     owner = "pre-commit";
     repo = pname;
     rev = "v${version}";
-    sha256 = "sha256-L71Zi0SWFh7K4BRwF57prdrIdxLp8Igs0k/gc6k1+Mo=";
+    sha256 = "sha256-0J3P3RawafVAfOUhK9qSz5K8y0goMqTjMh5PL60sqME=";
   };
 
   checkInputs = [
     editdistance-s
     pytestCheckHook
+    ukkonen
   ];
 
   pythonImportsCheck = [
diff --git a/pkgs/development/python-modules/ukkonen/default.nix b/pkgs/development/python-modules/ukkonen/default.nix
new file mode 100644
index 000000000000..dfdcf3515220
--- /dev/null
+++ b/pkgs/development/python-modules/ukkonen/default.nix
@@ -0,0 +1,41 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, cffi
+, pytestCheckHook
+, pythonOlder
+}:
+
+buildPythonPackage rec {
+  pname = "ukkonen";
+  version = "1.0.1";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.6";
+
+  src = fetchFromGitHub {
+    owner = "asottile";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "jG6VP/P5sadrdrmneH36/ExSld9blyMAAG963QS9+p0=";
+  };
+
+  nativeBuildInputs = [
+    cffi
+  ];
+
+  checkInputs = [
+    pytestCheckHook
+  ];
+
+  pythonImportsCheck = [
+    "ukkonen"
+  ];
+
+  meta = with lib; {
+    description = "Python implementation of bounded Levenshtein distance (Ukkonen)";
+    homepage = "https://github.com/asottile/ukkonen";
+    license = licenses.mit;
+    maintainers = with maintainers; [ fab ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index b0ea2fa743d6..a0d290a3b139 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -9586,6 +9586,8 @@ in {
 
   ujson = callPackage ../development/python-modules/ujson { };
 
+  ukkonen = callPackage ../development/python-modules/ukkonen { };
+
   ukpostcodeparser = callPackage ../development/python-modules/ukpostcodeparser { };
 
   umalqurra = callPackage ../development/python-modules/umalqurra { };