diff --git a/twitter_utils/services.py b/twitter_utils/services.py
index b188633a988add0fc62a31014d30b3c20f472dc2..1ce0598d64917bed8d93cdc40eeb97396a714a0c 100644
--- a/twitter_utils/services.py
+++ b/twitter_utils/services.py
@@ -112,7 +112,7 @@ class TweetDownloadService:
                             author_name=user_data.name,
                             author_username=user_data.username,
                             text=tweet.text,
-                            twitter_id=tweet.id,
+                            twitter_id=str(tweet.id),
                         )
                     )