diff --git a/pkgs/development/python-modules/python-lsp-black/default.nix b/pkgs/development/python-modules/python-lsp-black/default.nix
index 2f8356d7eeb1..573f400a4bd7 100644
--- a/pkgs/development/python-modules/python-lsp-black/default.nix
+++ b/pkgs/development/python-modules/python-lsp-black/default.nix
@@ -10,7 +10,6 @@
 
   # dependencies
   python-lsp-server,
-  tomli,
 
   # checks
   pytestCheckHook,