diff --git a/pkgs/applications/editors/vscode/extensions/default.nix b/pkgs/applications/editors/vscode/extensions/default.nix
index 3b1c1fb56e8a..aa6cd90d50bc 100644
--- a/pkgs/applications/editors/vscode/extensions/default.nix
+++ b/pkgs/applications/editors/vscode/extensions/default.nix
@@ -5052,42 +5052,6 @@ let
 
       vadimcn.vscode-lldb = callPackage ./vadimcn.vscode-lldb { };
 
-      valentjn.vscode-ltex = vscode-utils.buildVscodeMarketplaceExtension rec {
-        mktplcRef = {
-          name = "vscode-ltex";
-          publisher = "valentjn";
-          version = "13.1.0";
-        };
-
-        vsix = fetchurl {
-          name = "${mktplcRef.publisher}-${mktplcRef.name}.vsix";
-          url = "https://github.com/valentjn/vscode-ltex/releases/download/${mktplcRef.version}/vscode-ltex-${mktplcRef.version}-offline-linux-x64.vsix";
-          sha256 = "1nlrijjwc35n1xgb5lgnr4yvlgfcxd0vdj93ip8lv2xi8x1ni5f6";
-        };
-
-        nativeBuildInputs = [
-          jq
-          moreutils
-        ];
-
-        buildInputs = [ jdk ];
-
-        postInstall = ''
-          cd "$out/$installPrefix"
-          jq '.contributes.configuration.properties."ltex.java.path".default = "${jdk}"' package.json | sponge package.json
-
-          # drop the bundled JDK (unpatched, stale CA keystore); ltex-ls runs on jdk
-          rm -r lib/ltex-ls-*/jdk-*
-          substituteInPlace lib/ltex-ls-*/bin/ltex-ls lib/ltex-ls-*/bin/ltex-cli \
-            --replace-fail '"$BASEDIR"/jdk-11.0.12+7' '${jdk}'
-        '';
-
-        meta = {
-          license = lib.licenses.mpl20;
-          maintainers = [ ];
-        };
-      };
-
       viktorqvarfordt.vscode-pitch-black-theme = buildVscodeMarketplaceExtension {
         mktplcRef = {
           name = "vscode-pitch-black-theme";
@@ -5711,6 +5675,7 @@ let
     ms-vscode.theme-tomorrowkit = throw "ms-vscode.theme-tomorrowkit is deprecated"; # Added 2025-08-30
     richie5um2.snake-trail = throw "richie5um2.snake-trail is deprecated"; # Added 2025-09-04
     rioj7.commandOnAllFiles = throw "rioj7.commandOnAllFiles is deprecated in favor of rioj7.commandonallfiles"; # Added 2024-05-29
+    valentjn.vscode-ltex = throw "'valentjn.vscode-ltex' has been removed from the VSCode marketplace. Consider using 'ltex-plus.vscode-ltex-plus' instead"; # Added 2026-10-28
     WakaTime.vscode-wakatime = throw "WakaTime.vscode-wakatime is deprecated in favor of wakatime.vscode-wakatime"; # Added 2024-05-29
   };