diff --git a/app/terraform/block_ooni.py b/app/terraform/block_ooni.py
index f867d58..5704000 100644
--- a/app/terraform/block_ooni.py
+++ b/app/terraform/block_ooni.py
@@ -15,7 +15,7 @@ def check_origin(domain_name: str):
     start_date = (datetime.utcnow() - timedelta(days=1)).strftime("%Y-%m-%dT%H%%3A%M")
     end_date = datetime.utcnow().strftime("%Y-%m-%dT%H%%3A%M")
     api_url = f"https://api.ooni.io/api/v1/measurements?domain={domain_name}&since={start_date}&until={end_date}"
-    result = defaultdict(lambda: {"anomaly": 0, "confirmed": 0, "failure": 0, "ok": 0})
+    result: Dict[str, Dict[str, int]] = defaultdict(lambda: {"anomaly": 0, "confirmed": 0, "failure": 0, "ok": 0})
     return _check_origin(api_url, result)