diff --git a/pkgs/development/python-modules/langcodes/default.nix b/pkgs/development/python-modules/langcodes/default.nix
index 2b633356e30e..c67c26f70349 100644
--- a/pkgs/development/python-modules/langcodes/default.nix
+++ b/pkgs/development/python-modules/langcodes/default.nix
@@ -11,12 +11,12 @@
 
 buildPythonPackage rec {
   pname = "langcodes";
-  version = "3.5.0";
+  version = "3.5.1";
   pyproject = true;
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-Hu+BaNB+UeExokl//srUtmP2II58OuO43BXFFzSm+AE=";
+    hash = "sha256-QL/zFeAbAdEcKuOSjdT1y9dN04+b2RLBK5o2BsFD9zE=";
   };
 
   build-system = [
@@ -35,6 +35,10 @@ buildPythonPackage rec {
   disabledTests = [
     # AssertionError: assert 'Unknown language [aqk]' == 'Aninka'
     "test_updated_iana"
+    # doctest mismatches
+    "speaking_population"
+    "writing_population"
+    "README.md"
   ];
 
   pythonImportsCheck = [ "langcodes" ];