diff --git a/src/bin/focus.ts b/src/bin/focus.ts
index 23e7318..a77bceb 100644
--- a/src/bin/focus.ts
+++ b/src/bin/focus.ts
@@ -50,7 +50,9 @@ async function main(argv: string[]): Promise<number> {
     });
 
     if (values['version']) {
-        process.stdout.write('@focusmcp/cli 0.0.0\n');
+        process.stdout.write(
+            `@focusmcp/cli ${process.env['CLI_VERSION'] ?? '0.0.0'} (core ${process.env['CORE_VERSION'] ?? '0.0.0'})\n`,
+        );
         return 0;
     }
 
diff --git a/tsup.config.ts b/tsup.config.ts
index a78fbfc..ef06cf0 100644
--- a/tsup.config.ts
+++ b/tsup.config.ts
@@ -1,8 +1,14 @@
 // SPDX-FileCopyrightText: 2026 FocusMCP contributors
 // SPDX-License-Identifier: MIT
 
+import { readFileSync } from 'node:fs';
 import { defineConfig } from 'tsup';
 
+const cliPkg = JSON.parse(readFileSync('package.json', 'utf-8')) as { version: string };
+const corePkg = JSON.parse(readFileSync('../core/packages/core/package.json', 'utf-8')) as {
+    version: string;
+};
+
 export default defineConfig({
     entry: {
         index: 'src/index.ts',
@@ -19,6 +25,10 @@ export default defineConfig({
     dts: {
         entry: { index: 'src/index.ts' },
     },
+    define: {
+        'process.env.CLI_VERSION': JSON.stringify(cliPkg.version),
+        'process.env.CORE_VERSION': JSON.stringify(corePkg.version),
+    },
     sourcemap: true,
     clean: true,
     splitting: false,