diff --git a/packages/core/database/src/__tests__/operator/notIn.test.ts b/packages/core/database/src/__tests__/operator/notIn.test.ts
new file mode 100644
index 0000000000..03baab007c
--- /dev/null
+++ b/packages/core/database/src/__tests__/operator/notIn.test.ts
@@ -0,0 +1,33 @@
+import { mockDatabase } from '../index';
+import Database from '../../database';
+
+describe('ne operator', () => {
+  let db: Database;
+  let Test;
+  beforeEach(async () => {
+    db = mockDatabase({});
+
+    Test = db.collection({
+      name: 'tests',
+      fields: [{ type: 'string', name: 'name' }],
+    });
+
+    await db.sync();
+  });
+
+  afterEach(async () => {
+    await db.close();
+  });
+
+  it('should notIn with null', async () => {
+    await db.getRepository('tests').create({});
+
+    const results = await db.getRepository('tests').count({
+      filter: {
+        'name.$notIn': ['123'],
+      },
+    });
+
+    expect(results).toEqual(1);
+  });
+});
diff --git a/packages/core/database/src/operators/index.ts b/packages/core/database/src/operators/index.ts
index f746f04b42..db4cbca8a7 100644
--- a/packages/core/database/src/operators/index.ts
+++ b/packages/core/database/src/operators/index.ts
@@ -5,4 +5,5 @@ export default {
   ...require('./empty').default,
   ...require('./string').default,
   ...require('./ne').default,
+  ...require('./notIn').default,
 };
diff --git a/packages/core/database/src/operators/notIn.ts b/packages/core/database/src/operators/notIn.ts
new file mode 100644
index 0000000000..f5ad846014
--- /dev/null
+++ b/packages/core/database/src/operators/notIn.ts
@@ -0,0 +1,12 @@
+import { Op } from 'sequelize';
+
+export default {
+  $notIn(val, ctx) {
+    return {
+      [Op.or]: {
+        [Op.notIn]: val,
+        [Op.is]: null,
+      },
+    };
+  },
+};