diff --git a/neovim/default.nix b/neovim/default.nix
index b0574f5..78f33ed 100644
--- a/neovim/default.nix
+++ b/neovim/default.nix
@@ -18,6 +18,9 @@
         # better wildmenu
         wilder-nvim
 
+        # undo-tree
+        undotree
+
         # ui
         dressing-nvim