diff --git a/README.md b/README.md
index 9ef8ca7..07baa82 100644
--- a/README.md
+++ b/README.md
@@ -23,6 +23,7 @@ If vulnerabilities are found by `npm audit`, Action triggered by push, schedule
 |Parameter|Required|Default Value|Description|
 |:--:|:--:|:--:|:--|
 |audit_level|false|low|The value of `--audit-level` flag|
+|production_flag|false|false|Runnning `npm audit` with `--production`|
 |issue_assignees|false|N/A|Issue assignees (separated by commma)|
 |issue_labels|false|N/A|Issue labels (separated by commma)|
 |issue_title|false|npm audit found vulnerabilities|Issue title|
diff --git a/__tests__/audit.test.ts b/__tests__/audit.test.ts
index 2bf4654..ebca734 100644
--- a/__tests__/audit.test.ts
+++ b/__tests__/audit.test.ts
@@ -13,7 +13,7 @@ describe('run', () => {
     mocked(child_process).spawnSync.mockClear()
   })
 
-  test('finds vulnerabilities', () => {
+  test('finds vulnerabilities with default values', () => {
     mocked(child_process).spawnSync.mockImplementation((): any => {
       const stdout = fs.readFileSync(
         path.join(__dirname, 'testdata/audit/error.txt')
@@ -30,7 +30,28 @@ describe('run', () => {
       }
     })
 
-    audit.run('low')
+    audit.run('low', 'false')
+    expect(audit.foundVulnerability()).toBeTruthy()
+  })
+
+  test('finds vulnerabilities with production flag enabled', () => {
+    mocked(child_process).spawnSync.mockImplementation((): any => {
+      const stdout = fs.readFileSync(
+        path.join(__dirname, 'testdata/audit/error.txt')
+      )
+
+      return {
+        pid: 100,
+        output: [stdout],
+        stdout,
+        stderr: '',
+        status: 1,
+        signal: null,
+        error: null
+      }
+    })
+
+    audit.run('low', 'true')
     expect(audit.foundVulnerability()).toBeTruthy()
   })
 
@@ -51,7 +72,7 @@ describe('run', () => {
       }
     })
 
-    audit.run('low')
+    audit.run('low', 'false')
     expect(audit.foundVulnerability()).toBeFalsy()
   })
 
@@ -70,7 +91,7 @@ describe('run', () => {
 
     expect.assertions(1)
     const e = new Error('Something is wrong')
-    expect(() => audit.run('low')).toThrowError(e)
+    expect(() => audit.run('low', 'false')).toThrowError(e)
   })
 
   test('throws an error if status is null', () => {
@@ -88,7 +109,7 @@ describe('run', () => {
 
     expect.assertions(1)
     const e = new Error('the subprocess terminated due to a signal.')
-    expect(() => audit.run('low')).toThrowError(e)
+    expect(() => audit.run('low', 'false')).toThrowError(e)
   })
 
   test('throws an error if stderr is null', () => {
@@ -106,6 +127,6 @@ describe('run', () => {
 
     expect.assertions(1)
     const e = new Error('Something is wrong')
-    expect(() => audit.run('low')).toThrowError(e)
+    expect(() => audit.run('low', 'false')).toThrowError(e)
   })
 })
diff --git a/__tests__/main.test.ts b/__tests__/main.test.ts
index 5adc670..e8b6916 100644
--- a/__tests__/main.test.ts
+++ b/__tests__/main.test.ts
@@ -15,6 +15,7 @@ describe('run', () => {
     mocked(pr).createComment.mockClear()
 
     process.env.INPUT_AUDIT_LEVEL = 'low'
+    process.env.INPUT_PRODUCTION_FLAG = 'false'
     process.env.INPUT_GITHUB_CONTEXT =
       '{ "event_name": "pull_request", "event": { "number": 100} }'
     process.env.INPUT_GITHUB_TOKEN = '***'
diff --git a/__tests__/testdata/workdir/package-lock.json b/__tests__/testdata/workdir/package-lock.json
index 0fe7392..388db15 100644
--- a/__tests__/testdata/workdir/package-lock.json
+++ b/__tests__/testdata/workdir/package-lock.json
@@ -355,6 +355,12 @@
         "mime-types": "~2.1.24"
       }
     },
+    "typescript": {
+      "version": "3.9.7",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.7.tgz",
+      "integrity": "sha512-BLbiRkiBzAwsjut4x/dsibSTB6yWpwT5qWmC2OfuCg3GgVQCSgMs4vEctYPhsaGtd0AeuuHMkjZ2h2WG8MSzRw==",
+      "dev": true
+    },
     "unpipe": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
diff --git a/__tests__/testdata/workdir/package.json b/__tests__/testdata/workdir/package.json
index 7c65e9b..0a0a10a 100644
--- a/__tests__/testdata/workdir/package.json
+++ b/__tests__/testdata/workdir/package.json
@@ -11,5 +11,8 @@
   "license": "ISC",
   "dependencies": {
     "express": "^4.17.1"
+  },
+  "devDependencies": {
+    "typescript": "^3.9.7"
   }
 }
diff --git a/action.yml b/action.yml
index 09a1f8f..6d6f0b5 100644
--- a/action.yml
+++ b/action.yml
@@ -6,6 +6,10 @@ inputs:
     description: 'The value of `--audit-level` flag'
     default: low
     required: false
+  production_flag:
+    description: 'Run npm audit with --production'
+    default: 'false'
+    required: false
   github_context:
     description: 'The `github` context'
     default: ${{ toJson(github) }}
diff --git a/src/audit.ts b/src/audit.ts
index bd05b0d..1d46b7b 100644
--- a/src/audit.ts
+++ b/src/audit.ts
@@ -7,11 +7,17 @@ export class Audit {
   stdout = ''
   private status: number | null = null
 
-  public run(auditLevel: string): void {
+  public run(auditLevel: string, productionFlag: string): void {
     try {
+      const auditOptions: Array<string> =['audit', '--audit-level', auditLevel];
+      
+      if(productionFlag === 'true') {
+        auditOptions.push('--production');
+      }
+
       const result: SpawnSyncReturns<string> = spawnSync(
         'npm',
-        ['audit', '--audit-level', auditLevel],
+        auditOptions,
         {
           encoding: 'utf-8',
           maxBuffer: SPAWN_PROCESS_BUFFER_SIZE
diff --git a/src/main.ts b/src/main.ts
index 1d7f68c..36abfe0 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -25,9 +25,14 @@ export async function run(): Promise<void> {
       throw new Error('Invalid input: audit_level')
     }
 
+    const productionFlag = core.getInput('production_flag',  {required: false});
+    if (!['true', 'false'].includes(productionFlag)) {
+      throw new Error('Invalid input: production_flag')
+    }
+
     // run `npm audit`
     const audit = new Audit()
-    audit.run(auditLevel)
+    audit.run(auditLevel, productionFlag)
     core.info(audit.stdout)
 
     if (audit.foundVulnerability()) {