diff --git a/pkgs/applications/editors/vscode/extensions/default.nix b/pkgs/applications/editors/vscode/extensions/default.nix
index 32dd017cc07c..9447c0d78dee 100644
--- a/pkgs/applications/editors/vscode/extensions/default.nix
+++ b/pkgs/applications/editors/vscode/extensions/default.nix
@@ -1186,8 +1186,8 @@ let
         mktplcRef = {
           name = "dart-code";
           publisher = "dart-code";
-          version = "3.120.0";
-          hash = "sha256-YXQhdn9bOpVGeG0mKPazMvsZecx4sd1ZpSdHfH3eNOY=";
+          version = "3.126.0";
+          hash = "sha256-qkdLF6SIZjNJBQMhG/IDEaMpSVWWnd7DJmDgIT1gjVY=";
         };
 
         meta.license = lib.licenses.mit;