diff --git a/README.md b/README.md
index 75257c6..1a625cd 100644
--- a/README.md
+++ b/README.md
@@ -62,7 +62,7 @@ Adding the following to your workflow will create a new Sentry release and tell
 |`ignore_missing`|When the flag is set and the previous release commit was not found in the repository, will create a release with the default commits count instead of failing the command.|`false`|
 |`ignore_empty`|When the flag is set, command will not fail and just exit silently if no new commits for a given release have been found.|`false`|
 |`sourcemaps`|Space-separated list of paths to JavaScript sourcemaps. Omit to skip uploading sourcemaps.|-|
-|`dist`|Unique identifier for the distribution, used to further segment your release. Usually your build number. _Note: Required when uploading sourcemaps._|-|
+|`dist`|Unique identifier for the distribution, used to further segment your release. Usually your build number.|-|
 |`started_at`|Unix timestamp of the release start date. Omit for current time.|-|
 |`version`|Identifier that uniquely identifies the releases. _Note: the `refs/tags/` prefix is automatically stripped when `version` is `github.ref`._|<code>${{&nbsp;github.sha&nbsp;}}</code>|
 |`version_prefix`|Value prepended to auto-generated version. For example "v".|-|
@@ -81,7 +81,6 @@ Adding the following to your workflow will create a new Sentry release and tell
       with:
         environment: 'production'
         sourcemaps: './lib'
-        dist: ${{ github.sha }}
     ```
 
 - Create a new Sentry release for the `production` environment of your project at version `v1.0.1`.
diff --git a/__tests__/main.test.ts b/__tests__/main.test.ts
index daf0fe8..214495c 100644
--- a/__tests__/main.test.ts
+++ b/__tests__/main.test.ts
@@ -73,7 +73,7 @@ describe('options', () => {
     });
 
     test('should return null when dist is omitted', async () => {
-      expect(getDist()).toBeNull();
+      expect(getDist()).toBeUndefined();
     });
 
     test('should return a string when dist is provided', () => {
diff --git a/src/options.ts b/src/options.ts
index bcec4e5..b2901de 100644
--- a/src/options.ts
+++ b/src/options.ts
@@ -85,10 +85,10 @@ export const getSourcemaps = (): string[] => {
  * Dist is optional, but should be a string when provided.
  * @returns string
  */
-export const getDist = (): string | null => {
+export const getDist = (): string | undefined => {
   const distOption: string = core.getInput('dist');
   if (!distOption) {
-    return null;
+    return undefined;
   }
 
   return distOption;