diff --git a/pkgs/development/python-modules/bangla/default.nix b/pkgs/development/python-modules/bangla/default.nix
new file mode 100644
index 000000000000..d5664d7aeae0
--- /dev/null
+++ b/pkgs/development/python-modules/bangla/default.nix
@@ -0,0 +1,27 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+}:
+
+buildPythonPackage rec {
+  pname = "bangla";
+  version = "0.0.2";
+  format = "setuptools";
+
+  src = fetchPypi {
+    inherit pname version;
+    hash = "sha256-F8j9UBMhZgB31atqebdGu6cfnkk573isDZp1171xXag=";
+  };
+
+  pythonImportsCheck = [ "bangla" ];
+
+  # https://github.com/arsho/bangla/issues/5
+  doCheck = false;
+
+  meta = with lib; {
+    description = "Bangla is a package for Bangla language users with various functionalities including Bangla date and Bangla numeric conversation";
+    homepage = "https://github.com/arsho/bangla";
+    license = licenses.mit;
+    maintainers = teams.tts.members;
+  };
+}
diff --git a/pkgs/development/python-modules/bnnumerizer/default.nix b/pkgs/development/python-modules/bnnumerizer/default.nix
new file mode 100644
index 000000000000..c3beaa01cf12
--- /dev/null
+++ b/pkgs/development/python-modules/bnnumerizer/default.nix
@@ -0,0 +1,27 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+}:
+
+buildPythonPackage rec {
+  pname = "bnnumerizer";
+  version = "0.0.2";
+  format = "setuptools";
+
+  src = fetchPypi {
+    inherit pname version;
+    hash = "sha256-Qd9v0Le1GqTsR3a2ZDzt6+5f0R4zXX1W1KIMCFFeXw0=";
+  };
+
+  pythonImportsCheck = [ "bnnumerizer" ];
+
+  # https://github.com/mnansary/bnUnicodeNormalizer/issues/10
+  doCheck = false;
+
+  meta = with lib; {
+    description = "Bangla Number text to String Converter";
+    homepage = "https://github.com/banglakit/number-to-bengali-word";
+    license = licenses.mit;
+    maintainers = teams.tts.members;
+  };
+}
diff --git a/pkgs/development/python-modules/bnunicodenormalizer/default.nix b/pkgs/development/python-modules/bnunicodenormalizer/default.nix
new file mode 100644
index 000000000000..19aa011d3782
--- /dev/null
+++ b/pkgs/development/python-modules/bnunicodenormalizer/default.nix
@@ -0,0 +1,27 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, pytestCheckHook
+}:
+
+buildPythonPackage rec {
+  pname = "bnunicodenormalizer";
+  version = "0.1.6";
+  format = "setuptools";
+
+  src = fetchPypi {
+    inherit pname version;
+    hash = "sha256-qVC6+0SnAs25DFzKPHFUOoYPlrRvkGWFptjIVom8wJM=";
+  };
+
+  nativeCheckInputs = [ pytestCheckHook ];
+
+  pythonImportsCheck = [ "bnunicodenormalizer" ];
+
+  meta = with lib; {
+    description = "Bangla Unicode Normalization Toolkit";
+    homepage = "https://github.com/mnansary/bnUnicodeNormalizer";
+    license = licenses.mit;
+    maintainers = teams.tts.members;
+  };
+}
diff --git a/pkgs/tools/audio/tts/default.nix b/pkgs/tools/audio/tts/default.nix
index 687c214f6b36..24dbfee17517 100644
--- a/pkgs/tools/audio/tts/default.nix
+++ b/pkgs/tools/audio/tts/default.nix
@@ -1,7 +1,6 @@
 { lib
 , python3
 , fetchFromGitHub
-, fetchpatch
 , espeak-ng
 , tts
 }:
@@ -14,29 +13,19 @@ let
 in
 python.pkgs.buildPythonApplication rec {
   pname = "tts";
-  version = "0.13.2";
+  version = "0.13.3";
   format = "pyproject";
 
   src = fetchFromGitHub {
     owner = "coqui-ai";
     repo = "TTS";
     rev = "refs/tags/v${version}";
-    hash = "sha256-3t4JYEwQ+puGLhGl3nn93qsL8IeOwlYtHXTrnZ5Cf+w=";
+    hash = "sha256-cu714/XtVqqlHN2CmUObcNFG6Vdi9VqC4at/HB8euDs=";
   };
 
-  patches = [
-    (fetchpatch {
-      # upgrade librosa to 0.10.0
-      url = "https://github.com/coqui-ai/TTS/commit/4c829e74a1399ab083b566a70c1b7e879eda6e1e.patch";
-      hash = "sha256-QP9AnMbdEpGJywiZBreojHUjq29ihqy6HxvUtS5OKvQ=";
-      excludes = [
-        "requirements.txt"
-      ];
-    })
-  ];
-
   postPatch = let
     relaxedConstraints = [
+      "bnunicodenormalizer"
       "cython"
       "gruut"
       "inflect"
@@ -64,6 +53,9 @@ python.pkgs.buildPythonApplication rec {
 
   propagatedBuildInputs = with python.pkgs; [
     anyascii
+    bangla
+    bnnumerizer
+    bnunicodenormalizer
     coqpit
     flask
     fsspec
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 62090b79a52f..151377b390f8 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -1185,6 +1185,8 @@ self: super: with self; {
 
   bandit = callPackage ../development/python-modules/bandit { };
 
+  bangla = callPackage ../development/python-modules/bangla { };
+
   bap = callPackage ../development/python-modules/bap {
     inherit (pkgs.ocaml-ng.ocamlPackages) bap;
   };
@@ -1404,6 +1406,10 @@ self: super: with self; {
 
   bme680 = callPackage ../development/python-modules/bme680 { };
 
+  bnnumerizer = callPackage ../development/python-modules/bnnumerizer { };
+
+  bnunicodenormalizer = callPackage ../development/python-modules/bnunicodenormalizer { };
+
   boa-api = callPackage ../development/python-modules/boa-api { };
 
   bokeh = callPackage ../development/python-modules/bokeh { };