diff --git a/.eslintrc.js b/.eslintrc.js
index c37c9bb..fe4b197 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -19,6 +19,7 @@ module.exports = {
   parser: '@typescript-eslint/parser',
   plugins: ['jsx-a11y', 'react', 'react-hooks', '@typescript-eslint'],
   rules: {
+    '@typescript-eslint/no-unused-vars': 'error',
     'jsx-quotes': ['error', 'prefer-double'],
     'jsx-a11y/no-onchange': 0,
     'no-trailing-spaces': 'error',
diff --git a/__tests__/index.tsx b/__tests__/index.tsx
index 4c936c8..05bdc66 100644
--- a/__tests__/index.tsx
+++ b/__tests__/index.tsx
@@ -48,8 +48,6 @@ test('calls onChange & onInput when text changes', () => {
 })
 
 test('continues to work if no onChange and no onInput', () => {
-  const onChange = jest.fn()
-  const onInput = jest.fn()
   const { asFragment, getByText } = render(
     <ExpandingTextarea value="Some text" />
   )