diff --git a/app/cli.py b/app/cli.py
index d6f90d9e..a1f1ec19 100644
--- a/app/cli.py
+++ b/app/cli.py
@@ -307,6 +307,12 @@ def register(app):
                             account.bounces += 1
                     db.session.commit()
 
+    @app.cli.command("clean_up_old_activities")
+    def clean_up_old_activities():
+        with app.app_context():
+            db.session.query(ActivityPubLog).filter(ActivityPubLog.created_at < utcnow() - timedelta(days=3)).delete()
+            db.session.commit()
+
 
 def parse_communities(interests_source, segment):
     lines = interests_source.split("\n")
diff --git a/email_notifs.sh b/email_notifs.sh
index c70e21bb..9c22894f 100755
--- a/email_notifs.sh
+++ b/email_notifs.sh
@@ -4,3 +4,4 @@ source venv/bin/activate
 export FLASK_APP=pyfedi.py
 flask send_missed_notifs
 flask process_email_bounces
+flask clean_up_old_activities