diff --git a/assets/templates/multienv/deno.json b/assets/templates/multienv/deno.json
index 7f96d92..ed9baad 100644
--- a/assets/templates/multienv/deno.json
+++ b/assets/templates/multienv/deno.json
@@ -2,7 +2,8 @@
   "compilerOptions": {
     "experimentalDecorators": true,
     "lib": ["ES2022", "DOM"],
-    "target": "ES2022"
+    "target": "ES2022",
+    "checkJs": true
   },
   "nodeModulesDir": true
 }
diff --git a/changelog.md b/changelog.md
index 3c5bf32..3e54462 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,10 @@
 # Changelog
 
+## 2025-11-17 - 1.21.1 - fix(templates.multienv)
+Enable checkJs in multienv Deno template to enable JS type checking
+
+- Added "checkJs": true to compilerOptions in assets/templates/multienv/deno.json to enable JavaScript type checking for the Deno multienv template
+
 ## 2025-11-17 - 1.21.0 - feat(multienv)
 Add multi-env templates enabling TypeScript decorators for Bun and Deno; rename npmextra config key to szci
 
diff --git a/ts/00_commitinfo_data.ts b/ts/00_commitinfo_data.ts
index 6e076ba..d248250 100644
--- a/ts/00_commitinfo_data.ts
+++ b/ts/00_commitinfo_data.ts
@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@git.zone/cli',
-  version: '1.21.0',
+  version: '1.21.1',
   description: 'A comprehensive CLI tool for enhancing and managing local development workflows with gitzone utilities, focusing on project setup, version control, code formatting, and template management.'
 }