diff --git a/__tests__/cache-restore.test.ts b/__tests__/cache-restore.test.ts
index 07dc97aef..119c81c9d 100644
--- a/__tests__/cache-restore.test.ts
+++ b/__tests__/cache-restore.test.ts
@@ -51,7 +51,7 @@ describe('restoreCache', () => {
     );
   });
 
-  it('should inform if cache hit is not occured', async () => {
+  it('should inform if cache hit is not occurred', async () => {
     //Arrange
     hashFilesSpy.mockImplementation((somePath: string) => {
       return new Promise<string>(resolve => {
@@ -74,7 +74,7 @@ describe('restoreCache', () => {
     expect(infoSpy).toHaveBeenCalledWith(`Cache is not found`);
   });
 
-  it('should set output if cache hit is occured', async () => {
+  it('should set output if cache hit is occurred', async () => {
     //Arrange
     hashFilesSpy.mockImplementation((somePath: string) => {
       return new Promise<string>(resolve => {
diff --git a/__tests__/setup-go.test.ts b/__tests__/setup-go.test.ts
index f94f9eebe..3d59611a3 100644
--- a/__tests__/setup-go.test.ts
+++ b/__tests__/setup-go.test.ts
@@ -92,7 +92,7 @@ describe('setup-go', () => {
     getManifestSpy = jest.spyOn(tc, 'getManifestFromRepo');
     getAllVersionsSpy = jest.spyOn(im, 'getManifest');
 
-    // httm
+    // httpm
     httpmGetJsonSpy = jest.spyOn(httpm.HttpClient.prototype, 'getJson');
 
     // io
@@ -143,7 +143,7 @@ describe('setup-go', () => {
     expect(main.parseGoVersion(goVersionOutput)).toBe('1.16.6');
   });
 
-  it('can find 1.9.7 from manifest on osx', async () => {
+  it('can find 1.9.7 from manifest on macOS', async () => {
     os.platform = 'darwin';
     os.arch = 'x64';
 
diff --git a/docs/contributors.md b/docs/contributors.md
index 43412122e..fa89ac1cc 100644
--- a/docs/contributors.md
+++ b/docs/contributors.md
@@ -27,7 +27,7 @@ Pull requests are the easiest way to contribute changes to git repos at GitHub.
 - Please check that no one else has already created a pull request with these changes
 - Use a "feature branch" for your changes. That separates the changes in the pull request from your other changes and makes it easy to edit/amend commits in the pull request 
 - Make sure your changes are formatted correctly and consistently with the rest of the documentation
-- Re-read what you wrote, and run a spellchecker on it to make sure you didn't miss anything
+- Re-read what you wrote, and run a spell checker on it to make sure you didn't miss anything
 - If your pull request is connected to an open issue, please, leave a link to this issue in the `Related issue:` section
 - If you later need to add new commits to the pull request, you can simply commit the changes to the local branch and then push them. The pull request gets automatically updated