diff --git a/pkgs/applications/editors/vscode/extensions/default.nix b/pkgs/applications/editors/vscode/extensions/default.nix
index f162864e9135..1b86c90980f5 100644
--- a/pkgs/applications/editors/vscode/extensions/default.nix
+++ b/pkgs/applications/editors/vscode/extensions/default.nix
@@ -3521,8 +3521,8 @@ let
         mktplcRef = {
           name = "uiua-vscode";
           publisher = "uiua-lang";
-          version = "0.0.19";
-          sha256 = "sha256-Tww1urq6CfLma254Sn5lwOYwbvxAeDZuBuFBQlzks1c=";
+          version = "0.0.21";
+          sha256 = "sha256-u57U/MmxvionFZp/tLK/KpddaxA/SUffeggKBSzmsXo=";
         };
         meta = {
           description = "VSCode language extension for Uiua";