diff --git a/tests/test_api.py b/tests/test_api.py
index e361a1a..0705e9e 100644
--- a/tests/test_api.py
+++ b/tests/test_api.py
@@ -177,7 +177,7 @@ def _parse_reports(body):
     since = returned_full[4]["created_at"]
 
     tzone = timezone(timedelta(hours=int(since[-3:])))
-    stamp = datetime.strptime("%Y-%m-%d %H:%M:%S", since[:-3]).astimezone(tzone)
+    stamp = datetime.strptime(since[:-3], "%Y-%m-%d %H:%M:%S.%f").replace(tzinfo=tzone)
     response = test_client.get(
         "/db_export", params={"api_key": api_key, "table": "reports", "since": stamp.isoformat()}
     )