diff --git a/pkgs/development/python-modules/nocaselist/default.nix b/pkgs/development/python-modules/nocaselist/default.nix
index 23ccb28a03e5..c086f967d673 100644
--- a/pkgs/development/python-modules/nocaselist/default.nix
+++ b/pkgs/development/python-modules/nocaselist/default.nix
@@ -5,7 +5,6 @@
   pytestCheckHook,
   setuptools,
   setuptools-scm,
-  six,
   typing-extensions,
 }:
 
@@ -24,10 +23,7 @@ buildPythonPackage (finalAttrs: {
     setuptools-scm
   ];
 
-  dependencies = [
-    six
-    typing-extensions
-  ];
+  dependencies = [ typing-extensions ];
 
   nativeCheckInputs = [ pytestCheckHook ];