diff --git a/pkgs/development/python-modules/textstat/default.nix b/pkgs/development/python-modules/textstat/default.nix
index 43ac80efacaa..ff1422a56320 100644
--- a/pkgs/development/python-modules/textstat/default.nix
+++ b/pkgs/development/python-modules/textstat/default.nix
@@ -2,14 +2,14 @@
   lib,
   buildPythonPackage,
   fetchFromGitHub,
-  cmudict,
+  nltk,
   setuptools,
   pyphen,
   pytestCheckHook,
   pytest,
 }:
 buildPythonPackage rec {
-  version = "0.7.12";
+  version = "0.7.13";
   pname = "textstat";
   pyproject = true;
 
@@ -17,7 +17,7 @@ buildPythonPackage rec {
     owner = "textstat";
     repo = "textstat";
     tag = version;
-    hash = "sha256-HOYeWpyWPLUEwnj21WfMNmIg9x+jQUtY1o+Sl5zJRq4=";
+    hash = "sha256-VMWwhwyGMFaKNLHoDG3gw1/jzSYCDBH3Yq4pE4JZTTo=";
   };
 
   build-system = [
@@ -32,7 +32,7 @@ buildPythonPackage rec {
   dependencies = [
     setuptools
     pyphen
-    cmudict
+    nltk
   ];
 
   pythonImportsCheck = [
@@ -43,6 +43,8 @@ buildPythonPackage rec {
     "tests/"
   ];
 
+  NLTK_DATA = nltk.data.cmudict;
+
   meta = {
     description = "Python package to calculate readability statistics of a text object";
     homepage = "https://textstat.org";