diff --git a/pkgs/development/python-modules/fonttools/default.nix b/pkgs/development/python-modules/fonttools/default.nix
index 28d4053888f2..d96e434f2793 100644
--- a/pkgs/development/python-modules/fonttools/default.nix
+++ b/pkgs/development/python-modules/fonttools/default.nix
@@ -7,12 +7,11 @@
 
 buildPythonPackage rec {
   pname = "fonttools";
-  version = "3.23.0";
-  name = "${pname}-${version}";
+  version = "3.24.0";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "9af97075be0395b631880a82ba88dcf694c8aa76b07a622bf5f650e8f8cff293";
+    sha256 = "d09126f443bc8797d1b7e76274e65f4c169c04722745953ecf536451b1d9a15f";
     extension = "zip";
   };
 
@@ -23,6 +22,7 @@ buildPythonPackage rec {
   checkInputs = [
     pytest
     pytestrunner
+    glibcLocales
   ];
 
   meta = {