diff --git a/Program.cs b/Program.cs
index cd4ff3c..32965b0 100644
--- a/Program.cs
+++ b/Program.cs
@@ -1,4 +1,5 @@
 using System.Text.Json.Serialization;
+using Microsoft.Extensions.Caching.Memory;
 using NetCord;
 using NetCord.Gateway;
 using NetCord.Hosting.Gateway;
@@ -34,6 +35,7 @@ public class Program
         });
         builder.Services.AddSingleton<VoiceStateManager>();
         builder.Services.AddSingleton<VoiceStatesHandler>();
+        builder.Services.AddSingleton<IMemoryCache>(new MemoryCache(new MemoryCacheOptions()));
         builder.Services.AddDiscordGateway(options =>
             {
                 options.Intents = GatewayIntents.GuildMessages
diff --git a/StateMangers/VoiceStateManager.cs b/StateMangers/VoiceStateManager.cs
index 3f1572e..abc1a0c 100644
--- a/StateMangers/VoiceStateManager.cs
+++ b/StateMangers/VoiceStateManager.cs
@@ -1,3 +1,4 @@
+using Microsoft.Extensions.Caching.Memory;
 using NetCord;
 using NetCord.Gateway;
 using NetCord.Hosting.Gateway;
@@ -11,14 +12,14 @@ public class VoiceStateManager
     // Key: GuildId Value: List of UserId for users in voice channel
     // TODO: We probably want to persist this somewhere else (Redis/Valkey)
     private Dictionary<ulong, ISet<ulong>> _guildVoiceStates;
-    private Dictionary<ulong, DateTimeOffset> _yapperNotificationTimeouts;
+    private IMemoryCache _yapperNotificationTimeoutCache;
     private RestClient _restClient;
     private ILogger<VoiceStateManager> _logger;
     
-    public VoiceStateManager(ILogger<VoiceStateManager> logger, RestClient restClient)
+    public VoiceStateManager(ILogger<VoiceStateManager> logger, RestClient restClient, IMemoryCache yapperNotificationTimeoutCache)
     {
         _guildVoiceStates = new Dictionary<ulong, ISet<ulong>>();
-        _yapperNotificationTimeouts = new Dictionary<ulong, DateTimeOffset>();
+        _yapperNotificationTimeoutCache = yapperNotificationTimeoutCache;
         _restClient = restClient ?? throw new System.ArgumentNullException(nameof(restClient));
         _logger = logger ?? throw new System.ArgumentNullException(nameof(logger));
     }
@@ -36,11 +37,11 @@ public class VoiceStateManager
                 var guildRoles = await _restClient.GetGuildRolesAsync(voice_state.GuildId,
                     new RestRequestProperties() { AuditLogReason = "Role lookup" });
                 var yapperRoleId = guildRoles.FirstOrDefault(role => role.Name.ToLower() == "yapper")?.Id;
-                if (alertChannelId is not null && yapperRoleId is not null && (!_yapperNotificationTimeouts.TryGetValue(voice_state.GuildId, out var timeout) || DateTimeOffset.UtcNow.CompareTo(timeout) > 0))
+                if (alertChannelId is not null && yapperRoleId is not null && (!_yapperNotificationTimeoutCache.TryGetValue(voice_state.GuildId, out DateTimeOffset timeout) || DateTimeOffset.UtcNow.CompareTo(timeout) > 0))
                 {
                     // Notify that new yapper has arrived
                     await _restClient.SendMessageAsync(
-                        alertChannelId.GetValueOrDefault(), 
+                        alertChannelId.GetValueOrDefault(),
                         new MessageProperties()
                         {
                             AllowedMentions = new AllowedMentionsProperties() {AllowedRoles = [yapperRoleId.GetValueOrDefault()]},
@@ -64,7 +65,8 @@ public class VoiceStateManager
             {
                 yappers.Remove(voice_state.UserId);
                 _guildVoiceStates[voice_state.GuildId] = yappers;
-                _yapperNotificationTimeouts[voice_state.GuildId] = DateTimeOffset.UtcNow.AddHours(2);
+                var expiration = DateTimeOffset.UtcNow.AddHours(2);
+                _yapperNotificationTimeoutCache.Set(voice_state.GuildId, expiration, expiration);
             }
         }