diff --git a/matchy/state.py b/matchy/state.py
index 5af6096..0dbed7a 100644
--- a/matchy/state.py
+++ b/matchy/state.py
@@ -1,6 +1,6 @@
 """Store bot state"""
 import os
-from datetime import datetime
+from datetime import datetime, timedelta
 from schema import Schema, Use, Optional
 from collections.abc import Generator
 from typing import Protocol
@@ -243,18 +243,20 @@ class _State():
 
     def get_history_timestamps(self, users: list[Member]) -> list[datetime]:
         """Grab all timestamps in the history"""
-        others = [m.id for m in users]
+        ids = [int(m.id) for m in users]
 
         # Fetch all the interaction times in history
         # But only for interactions in the given user group
         times = set()
-        for data in (data for id, data in self._users.items() if int(id) in others):
+        for data in (data for id, data in self._users.items() if id in ids):
             matches = data.get(_Key.MATCHES, {})
-            for ts in (ts for id, ts in matches.items() if int(id) in others):
+            for ts in (ts for id, ts in matches.items() if id in ids):
                 times.add(ts)
 
         # Convert to datetimes and sort
         datetimes = [ts_to_datetime(ts) for ts in times]
+        # Remove any entries older than 6 months ago
+        datetimes = [t for t in datetimes if t >= datetime.now() - timedelta(months=3)]
         datetimes.sort()
         return datetimes
 
diff --git a/requirements.txt b/requirements.txt
index 99d752f..3909658 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,8 +1,8 @@
-coverage==7.6.10
+coverage==7.12.0
 discord.py==2.4.0
 dpytest==0.7.0
 flake8==7.1.1
-pytest==8.3.3
+pytest==9.0.1
 pytest-asyncio==0.25.2
 pytest-cov==5.0.0
-schema==0.7.7
\ No newline at end of file
+schema==0.7.8
\ No newline at end of file