diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 1fc46b11..27938598 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -86,26 +86,26 @@ devDependencies:
 
 packages:
 
-  /@babel/code-frame/7.16.7:
-    resolution: {integrity: sha512-iAXqUn8IIeBTNd72xsFlgaXHkMBMt6y4HJp1tIaK465CWLT/fG1aqB7ykr95gHHmlBdGbFeWWfyB4NJJ0nmeIg==}
+  /@babel/code-frame/7.18.6:
+    resolution: {integrity: sha512-TDCmlK5eOvH+eH7cdAFlNXeVJqWIQ7gW9tY1GJIpUtFb6CmjVyq2VM3u71bOyR8CRihcCgMUYoDNyLXao3+70Q==}
     engines: {node: '>=6.9.0'}
     requiresBuild: true
     dependencies:
-      '@babel/highlight': 7.16.10
+      '@babel/highlight': 7.18.6
     dev: true
     optional: true
 
-  /@babel/helper-validator-identifier/7.16.7:
-    resolution: {integrity: sha512-hsEnFemeiW4D08A5gUAZxLBTXpZ39P+a+DGDsHw1yxqyQ/jzFEnxf5uTEGp+3bzAbNOxU1paTgYS4ECU/IgfDw==}
+  /@babel/helper-validator-identifier/7.18.6:
+    resolution: {integrity: sha512-MmetCkz9ej86nJQV+sFCxoGGrUbU3q02kgLciwkrt9QqEB7cP39oKEY0PakknEO0Gu20SskMRi+AYZ3b1TpN9g==}
     engines: {node: '>=6.9.0'}
     dev: true
     optional: true
 
-  /@babel/highlight/7.16.10:
-    resolution: {integrity: sha512-5FnTQLSLswEj6IkgVw5KusNUUFY9ZGqe/TRFnP/BKYHYgfh7tc+C7mwiy95/yNP7Dh9x580Vv8r7u7ZfTBFxdw==}
+  /@babel/highlight/7.18.6:
+    resolution: {integrity: sha512-u7stbOuYjaPezCuLj29hNW1v64M2Md2qupEKP1fHc7WdOA3DgLh37suiSrZYY7haUB7iBeQZ9P1uiRF359do3g==}
     engines: {node: '>=6.9.0'}
     dependencies:
-      '@babel/helper-validator-identifier': 7.16.7
+      '@babel/helper-validator-identifier': 7.18.6
       chalk: 2.4.2
       js-tokens: 4.0.0
     dev: true
@@ -209,6 +209,7 @@ packages:
     engines: {node: '>=10'}
     cpu: [arm64]
     os: [linux]
+    libc: [glibc]
     requiresBuild: true
     dev: true
     optional: true
@@ -218,6 +219,7 @@ packages:
     engines: {node: '>=10'}
     cpu: [arm64]
     os: [linux]
+    libc: [musl]
     requiresBuild: true
     dev: true
     optional: true
@@ -227,6 +229,7 @@ packages:
     engines: {node: '>=10'}
     cpu: [x64]
     os: [linux]
+    libc: [glibc]
     requiresBuild: true
     dev: true
     optional: true
@@ -236,6 +239,7 @@ packages:
     engines: {node: '>=10'}
     cpu: [x64]
     os: [linux]
+    libc: [musl]
     requiresBuild: true
     dev: true
     optional: true
@@ -1600,7 +1604,7 @@ packages:
       rollup: 2.74.1
       typescript: 4.6.3
     optionalDependencies:
-      '@babel/code-frame': 7.16.7
+      '@babel/code-frame': 7.18.6
     dev: true
 
   /rollup-plugin-hashbang/2.2.2:
diff --git a/src/plugins/es5.ts b/src/plugins/es5.ts
index a689b741..5d1030c7 100644
--- a/src/plugins/es5.ts
+++ b/src/plugins/es5.ts
@@ -35,6 +35,12 @@ export const es5 = (): Plugin => {
           parser: {
             syntax: 'ecmascript',
           },
+          minify: this.options.minify ? {
+            compress: false,
+            mangle: {
+              reserved: this.options.globalName ? [this.options.globalName] : []
+            },
+          } : undefined,
         },
       })
       return {
diff --git a/test/index.test.ts b/test/index.test.ts
index 63b67dab..3676025d 100644
--- a/test/index.test.ts
+++ b/test/index.test.ts
@@ -443,7 +443,6 @@ test('svelte: typescript support', async () => {
   expect(output).toContain('// Component.svelte')
 })
 
-
 test('onSuccess', async () => {
   const { logs } = await run(
     getTestName(),
@@ -460,11 +459,9 @@ test('onSuccess', async () => {
 })
 
 test('onSuccess: use a function from config file', async () => {
-  const { logs } = await run(
-    getTestName(),
-    {
-      'input.ts': "console.log('test');",
-      'tsup.config.ts': `
+  const { logs } = await run(getTestName(), {
+    'input.ts': "console.log('test');",
+    'tsup.config.ts': `
         export default {
           onSuccess: async () => {
             console.log('hello')
@@ -475,9 +472,8 @@ test('onSuccess: use a function from config file', async () => {
               }, 1_000)
             })
           }
-        }`
-    },
-  )
+        }`,
+  })
 
   expect(logs.includes('hello')).toEqual(true)
   expect(logs.includes('world')).toEqual(true)
@@ -824,6 +820,38 @@ test('es5 target', async () => {
   expect(outFiles).toEqual(['input.js'])
 })
 
+test('es5 minify', async () => {
+  const { getFileContent, outFiles } = await run(
+    getTestName(),
+    {
+      'input.ts': `
+    export class Foo {
+      hi (): void {
+        let a = () => 'foo'
+
+        console.log(a())
+      }
+    }
+    `,
+    },
+    {
+      flags: [
+        '--target',
+        'es5',
+        '--format',
+        'iife',
+        '--globalName',
+        'FooAPI',
+        '--minify',
+      ],
+    }
+  )
+  expect(outFiles).toEqual(['input.global.js'])
+  const iifeBundle = await getFileContent('dist/input.global.js')
+  expect(iifeBundle).toMatch(/var FooAPI/)
+  expect(iifeBundle).not.toMatch(/createClass/)
+})
+
 test('multiple targets', async () => {
   const { output, outFiles } = await run(
     getTestName(),