diff --git a/tests/sentry/tasks/test_post_process.py b/tests/sentry/tasks/test_post_process.py
index 4d74974e3d5020..d440bd430c949d 100644
--- a/tests/sentry/tasks/test_post_process.py
+++ b/tests/sentry/tasks/test_post_process.py
@@ -1296,7 +1296,9 @@ def test_issue_owners_should_ratelimit(self, logger):
 class ProcessCommitsTestMixin(BasePostProgressGroupMixin):
     github_blame_return_value = {
         "commitId": "asdfwreqr",
-        "committedDate": "",
+        "committedDate": (datetime.now(timezone.utc) - timedelta(days=2)).strftime(
+            "%Y-%m-%dT%H:%M:%SZ"
+        ),
         "commitMessage": "placeholder commit message",
         "commitAuthorName": "",
         "commitAuthorEmail": "admin@localhost",