diff --git a/__test__/input-helper.test.ts b/__test__/input-helper.test.ts
index e0f711b..09331eb 100644
--- a/__test__/input-helper.test.ts
+++ b/__test__/input-helper.test.ts
@@ -134,7 +134,8 @@ describe('input-helper tests', () => {
   })
 
   it('sets ref to empty when explicit sha-256', async () => {
-    inputs.ref = '1111111111222222222233333333334444444444555555555566666666667777'
+    inputs.ref =
+      '1111111111222222222233333333334444444444555555555566666666667777'
     const settings: IGitSourceSettings = await inputHelper.getInputs()
     expect(settings.ref).toBeFalsy()
     expect(settings.commit).toBe(
diff --git a/src/ref-helper.ts b/src/ref-helper.ts
index 05362bd..71e8b22 100644
--- a/src/ref-helper.ts
+++ b/src/ref-helper.ts
@@ -258,7 +258,9 @@ export async function checkCommitInfo(
     }
 
     // Extract details from message
-    const match = commitInfo.match(/Merge ([0-9a-f]{40}|[0-9a-f]{64}) into ([0-9a-f]{40}|[0-9a-f]{64})/)
+    const match = commitInfo.match(
+      /Merge ([0-9a-f]{40}|[0-9a-f]{64}) into ([0-9a-f]{40}|[0-9a-f]{64})/
+    )
     if (!match) {
       core.debug('Unexpected message format')
       return