diff --git a/.all-contributorsrc b/.all-contributorsrc
index 87ec42fd..be8f304a 100644
--- a/.all-contributorsrc
+++ b/.all-contributorsrc
@@ -174,6 +174,15 @@
       "contributions": [
         "code"
       ]
+    },
+    {
+      "login": "keiya01",
+      "name": "keiya sasaki",
+      "avatar_url": "https://avatars1.githubusercontent.com/u/34934510?v=4",
+      "profile": "https://keiya01.github.io/portfolio",
+      "contributions": [
+        "test"
+      ]
     }
   ],
   "commitConvention": "none"
diff --git a/README.md b/README.md
index 06316c9a..e40d2ad9 100644
--- a/README.md
+++ b/README.md
@@ -142,33 +142,33 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
 <!-- markdownlint-disable -->
 <table>
   <tr>
-    <td align="center"><a href="https://github.com/mpeyper"><img src="https://avatars0.githubusercontent.com/u/23029903?v=4" width="100px;" alt=""/><br /><sub><b>Michael Peyper</b></sub></a><br /><a href="https://github.com/testing-library/react-hooks-testing-library/commits?author=mpeyper" title="Code">💻</a> <a href="#design-mpeyper" title="Design">🎨</a> <a href="https://github.com/testing-library/react-hooks-testing-library/commits?author=mpeyper" title="Documentation">📖</a> <a href="#ideas-mpeyper" title="Ideas, Planning, & Feedback">🤔</a> <a href="#infra-mpeyper" title="Infrastructure (Hosting, Build-Tools, etc)">🚇</a> <a href="#platform-mpeyper" title="Packaging/porting to new platform">📦</a> <a href="https://github.com/testing-library/react-hooks-testing-library/commits?author=mpeyper" title="Tests">⚠️</a> <a href="#tool-mpeyper" title="Tools">🔧</a></td>
-    <td align="center"><a href="https://github.com/otofu-square"><img src="https://avatars0.githubusercontent.com/u/10118235?v=4" width="100px;" alt=""/><br /><sub><b>otofu-square</b></sub></a><br /><a href="https://github.com/testing-library/react-hooks-testing-library/commits?author=otofu-square" title="Code">💻</a></td>
-    <td align="center"><a href="https://github.com/ab18556"><img src="https://avatars2.githubusercontent.com/u/988696?v=4" width="100px;" alt=""/><br /><sub><b>Patrick P. Henley</b></sub></a><br /><a href="#ideas-ab18556" title="Ideas, Planning, & Feedback">🤔</a> <a href="https://github.com/testing-library/react-hooks-testing-library/pulls?q=is%3Apr+reviewed-by%3Aab18556" title="Reviewed Pull Requests">👀</a></td>
-    <td align="center"><a href="https://twitter.com/matiosfm"><img src="https://avatars3.githubusercontent.com/u/7120471?v=4" width="100px;" alt=""/><br /><sub><b>Matheus Marques</b></sub></a><br /><a href="https://github.com/testing-library/react-hooks-testing-library/commits?author=marquesm91" title="Code">💻</a></td>
-    <td align="center"><a href="https://ca.linkedin.com/in/dhruvmpatel"><img src="https://avatars1.githubusercontent.com/u/19353311?v=4" width="100px;" alt=""/><br /><sub><b>Dhruv Patel</b></sub></a><br /><a href="https://github.com/testing-library/react-hooks-testing-library/issues?q=author%3Adhruv-m-patel" title="Bug reports">🐛</a> <a href="https://github.com/testing-library/react-hooks-testing-library/pulls?q=is%3Apr+reviewed-by%3Adhruv-m-patel" title="Reviewed Pull Requests">👀</a></td>
-    <td align="center"><a href="https://ntucker.true.io"><img src="https://avatars0.githubusercontent.com/u/866147?v=4" width="100px;" alt=""/><br /><sub><b>Nathaniel Tucker</b></sub></a><br /><a href="https://github.com/testing-library/react-hooks-testing-library/issues?q=author%3Antucker" title="Bug reports">🐛</a> <a href="https://github.com/testing-library/react-hooks-testing-library/pulls?q=is%3Apr+reviewed-by%3Antucker" title="Reviewed Pull Requests">👀</a></td>
-    <td align="center"><a href="https://github.com/sgrishchenko"><img src="https://avatars3.githubusercontent.com/u/15995890?v=4" width="100px;" alt=""/><br /><sub><b>Sergei Grishchenko</b></sub></a><br /><a href="https://github.com/testing-library/react-hooks-testing-library/commits?author=sgrishchenko" title="Code">💻</a> <a href="https://github.com/testing-library/react-hooks-testing-library/commits?author=sgrishchenko" title="Documentation">📖</a> <a href="#ideas-sgrishchenko" title="Ideas, Planning, & Feedback">🤔</a></td>
+    <td align="center"><a href="https://github.com/mpeyper"><img src="https://avatars0.githubusercontent.com/u/23029903?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Michael Peyper</b></sub></a><br /><a href="https://github.com/testing-library/react-hooks-testing-library/commits?author=mpeyper" title="Code">💻</a> <a href="#design-mpeyper" title="Design">🎨</a> <a href="https://github.com/testing-library/react-hooks-testing-library/commits?author=mpeyper" title="Documentation">📖</a> <a href="#ideas-mpeyper" title="Ideas, Planning, & Feedback">🤔</a> <a href="#infra-mpeyper" title="Infrastructure (Hosting, Build-Tools, etc)">🚇</a> <a href="#platform-mpeyper" title="Packaging/porting to new platform">📦</a> <a href="https://github.com/testing-library/react-hooks-testing-library/commits?author=mpeyper" title="Tests">⚠️</a> <a href="#tool-mpeyper" title="Tools">🔧</a></td>
+    <td align="center"><a href="https://github.com/otofu-square"><img src="https://avatars0.githubusercontent.com/u/10118235?v=4?s=100" width="100px;" alt=""/><br /><sub><b>otofu-square</b></sub></a><br /><a href="https://github.com/testing-library/react-hooks-testing-library/commits?author=otofu-square" title="Code">💻</a></td>
+    <td align="center"><a href="https://github.com/ab18556"><img src="https://avatars2.githubusercontent.com/u/988696?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Patrick P. Henley</b></sub></a><br /><a href="#ideas-ab18556" title="Ideas, Planning, & Feedback">🤔</a> <a href="https://github.com/testing-library/react-hooks-testing-library/pulls?q=is%3Apr+reviewed-by%3Aab18556" title="Reviewed Pull Requests">👀</a></td>
+    <td align="center"><a href="https://twitter.com/matiosfm"><img src="https://avatars3.githubusercontent.com/u/7120471?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Matheus Marques</b></sub></a><br /><a href="https://github.com/testing-library/react-hooks-testing-library/commits?author=marquesm91" title="Code">💻</a></td>
+    <td align="center"><a href="https://ca.linkedin.com/in/dhruvmpatel"><img src="https://avatars1.githubusercontent.com/u/19353311?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Dhruv Patel</b></sub></a><br /><a href="https://github.com/testing-library/react-hooks-testing-library/issues?q=author%3Adhruv-m-patel" title="Bug reports">🐛</a> <a href="https://github.com/testing-library/react-hooks-testing-library/pulls?q=is%3Apr+reviewed-by%3Adhruv-m-patel" title="Reviewed Pull Requests">👀</a></td>
+    <td align="center"><a href="https://ntucker.true.io"><img src="https://avatars0.githubusercontent.com/u/866147?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Nathaniel Tucker</b></sub></a><br /><a href="https://github.com/testing-library/react-hooks-testing-library/issues?q=author%3Antucker" title="Bug reports">🐛</a> <a href="https://github.com/testing-library/react-hooks-testing-library/pulls?q=is%3Apr+reviewed-by%3Antucker" title="Reviewed Pull Requests">👀</a></td>
+    <td align="center"><a href="https://github.com/sgrishchenko"><img src="https://avatars3.githubusercontent.com/u/15995890?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Sergei Grishchenko</b></sub></a><br /><a href="https://github.com/testing-library/react-hooks-testing-library/commits?author=sgrishchenko" title="Code">💻</a> <a href="https://github.com/testing-library/react-hooks-testing-library/commits?author=sgrishchenko" title="Documentation">📖</a> <a href="#ideas-sgrishchenko" title="Ideas, Planning, & Feedback">🤔</a></td>
   </tr>
   <tr>
-    <td align="center"><a href="https://github.com/josepot"><img src="https://avatars1.githubusercontent.com/u/8620144?v=4" width="100px;" alt=""/><br /><sub><b>Josep M Sobrepere</b></sub></a><br /><a href="https://github.com/testing-library/react-hooks-testing-library/commits?author=josepot" title="Documentation">📖</a></td>
-    <td align="center"><a href="https://github.com/mtinner"><img src="https://avatars0.githubusercontent.com/u/5487448?v=4" width="100px;" alt=""/><br /><sub><b>Marcel Tinner</b></sub></a><br /><a href="https://github.com/testing-library/react-hooks-testing-library/commits?author=mtinner" title="Documentation">📖</a></td>
-    <td align="center"><a href="https://github.com/FredyC"><img src="https://avatars0.githubusercontent.com/u/1096340?v=4" width="100px;" alt=""/><br /><sub><b>Daniel K.</b></sub></a><br /><a href="https://github.com/testing-library/react-hooks-testing-library/issues?q=author%3AFredyC" title="Bug reports">🐛</a> <a href="https://github.com/testing-library/react-hooks-testing-library/commits?author=FredyC" title="Code">💻</a></td>
-    <td align="center"><a href="https://github.com/VinceMalone"><img src="https://avatars0.githubusercontent.com/u/2516349?v=4" width="100px;" alt=""/><br /><sub><b>Vince Malone</b></sub></a><br /><a href="https://github.com/testing-library/react-hooks-testing-library/commits?author=VinceMalone" title="Code">💻</a></td>
-    <td align="center"><a href="https://github.com/doppelmutzi"><img src="https://avatars1.githubusercontent.com/u/4130968?v=4" width="100px;" alt=""/><br /><sub><b>Sebastian Weber</b></sub></a><br /><a href="#blog-doppelmutzi" title="Blogposts">📝</a></td>
-    <td align="center"><a href="https://gillchristian.xyz"><img src="https://avatars2.githubusercontent.com/u/8309423?v=4" width="100px;" alt=""/><br /><sub><b>Christian Gill</b></sub></a><br /><a href="https://github.com/testing-library/react-hooks-testing-library/commits?author=gillchristian" title="Documentation">📖</a></td>
-    <td align="center"><a href="https://jsjoe.io"><img src="https://avatars3.githubusercontent.com/u/3806031?v=4" width="100px;" alt=""/><br /><sub><b>JavaScript Joe</b></sub></a><br /><a href="#tutorial-jsjoeio" title="Tutorials">✅</a></td>
+    <td align="center"><a href="https://github.com/josepot"><img src="https://avatars1.githubusercontent.com/u/8620144?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Josep M Sobrepere</b></sub></a><br /><a href="https://github.com/testing-library/react-hooks-testing-library/commits?author=josepot" title="Documentation">📖</a></td>
+    <td align="center"><a href="https://github.com/mtinner"><img src="https://avatars0.githubusercontent.com/u/5487448?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Marcel Tinner</b></sub></a><br /><a href="https://github.com/testing-library/react-hooks-testing-library/commits?author=mtinner" title="Documentation">📖</a></td>
+    <td align="center"><a href="https://github.com/FredyC"><img src="https://avatars0.githubusercontent.com/u/1096340?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Daniel K.</b></sub></a><br /><a href="https://github.com/testing-library/react-hooks-testing-library/issues?q=author%3AFredyC" title="Bug reports">🐛</a> <a href="https://github.com/testing-library/react-hooks-testing-library/commits?author=FredyC" title="Code">💻</a></td>
+    <td align="center"><a href="https://github.com/VinceMalone"><img src="https://avatars0.githubusercontent.com/u/2516349?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Vince Malone</b></sub></a><br /><a href="https://github.com/testing-library/react-hooks-testing-library/commits?author=VinceMalone" title="Code">💻</a></td>
+    <td align="center"><a href="https://github.com/doppelmutzi"><img src="https://avatars1.githubusercontent.com/u/4130968?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Sebastian Weber</b></sub></a><br /><a href="#blog-doppelmutzi" title="Blogposts">📝</a></td>
+    <td align="center"><a href="https://gillchristian.xyz"><img src="https://avatars2.githubusercontent.com/u/8309423?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Christian Gill</b></sub></a><br /><a href="https://github.com/testing-library/react-hooks-testing-library/commits?author=gillchristian" title="Documentation">📖</a></td>
+    <td align="center"><a href="https://jsjoe.io"><img src="https://avatars3.githubusercontent.com/u/3806031?v=4?s=100" width="100px;" alt=""/><br /><sub><b>JavaScript Joe</b></sub></a><br /><a href="#tutorial-jsjoeio" title="Tutorials">✅</a></td>
   </tr>
   <tr>
-    <td align="center"><a href="http://frontstuff.io"><img src="https://avatars1.githubusercontent.com/u/5370675?v=4" width="100px;" alt=""/><br /><sub><b>Sarah Dayan</b></sub></a><br /><a href="#platform-sarahdayan" title="Packaging/porting to new platform">📦</a></td>
-    <td align="center"><a href="https://github.com/102"><img src="https://avatars1.githubusercontent.com/u/5839225?v=4" width="100px;" alt=""/><br /><sub><b>Roman Gusev</b></sub></a><br /><a href="https://github.com/testing-library/react-hooks-testing-library/commits?author=102" title="Documentation">📖</a></td>
-    <td align="center"><a href="https://github.com/hemlok"><img src="https://avatars2.githubusercontent.com/u/9043345?v=4" width="100px;" alt=""/><br /><sub><b>Adam Seckel</b></sub></a><br /><a href="https://github.com/testing-library/react-hooks-testing-library/commits?author=hemlok" title="Code">💻</a></td>
+    <td align="center"><a href="http://frontstuff.io"><img src="https://avatars1.githubusercontent.com/u/5370675?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Sarah Dayan</b></sub></a><br /><a href="#platform-sarahdayan" title="Packaging/porting to new platform">📦</a></td>
+    <td align="center"><a href="https://github.com/102"><img src="https://avatars1.githubusercontent.com/u/5839225?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Roman Gusev</b></sub></a><br /><a href="https://github.com/testing-library/react-hooks-testing-library/commits?author=102" title="Documentation">📖</a></td>
+    <td align="center"><a href="https://github.com/hemlok"><img src="https://avatars2.githubusercontent.com/u/9043345?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Adam Seckel</b></sub></a><br /><a href="https://github.com/testing-library/react-hooks-testing-library/commits?author=hemlok" title="Code">💻</a></td>
+    <td align="center"><a href="https://keiya01.github.io/portfolio"><img src="https://avatars1.githubusercontent.com/u/34934510?v=4?s=100" width="100px;" alt=""/><br /><sub><b>keiya sasaki</b></sub></a><br /><a href="https://github.com/testing-library/react-hooks-testing-library/commits?author=keiya01" title="Tests">⚠️</a></td>
   </tr>
 </table>
 
 <!-- markdownlint-enable -->
 <!-- prettier-ignore-end -->
-
 <!-- ALL-CONTRIBUTORS-LIST:END -->
 
 This project follows the [all-contributors](https://allcontributors.org/) specification.
diff --git a/test/useMemo.test.js b/test/useMemo.test.js
index 3abeb855..efbf49d6 100644
--- a/test/useMemo.test.js
+++ b/test/useMemo.test.js
@@ -39,15 +39,15 @@ describe('useCallback tests', () => {
 
     const callback1 = result.current
 
-    const calbackValue1 = callback1()
+    const callbackValue1 = callback1()
 
-    expect(calbackValue1).toEqual({ value: 1 })
+    expect(callbackValue1).toEqual({ value: 1 })
 
     const callback2 = result.current
 
-    const calbackValue2 = callback2()
+    const callbackValue2 = callback2()
 
-    expect(calbackValue2).toEqual({ value: 1 })
+    expect(callbackValue2).toEqual({ value: 1 })
 
     expect(callback2).toBe(callback1)
 
@@ -55,9 +55,9 @@ describe('useCallback tests', () => {
 
     const callback3 = result.current
 
-    const calbackValue3 = callback3()
+    const callbackValue3 = callback3()
 
-    expect(calbackValue3).toEqual({ value: 2 })
+    expect(callbackValue3).toEqual({ value: 2 })
 
     expect(callback3).not.toBe(callback1)
   })