diff --git a/.github/workflows/auto-reviewers.yml b/.github/workflows/auto-reviewers.yml
deleted file mode 100644
index b4aa751..0000000
--- a/.github/workflows/auto-reviewers.yml
+++ /dev/null
@@ -1,19 +0,0 @@
-name: AI Code Review
-on:
-  pull_request:
-    types: [opened, synchronize] # triggers on new PR and each commit
-
-jobs:
-  ai-review:
-    runs-on: ubuntu-latest
-    steps:
-
-      - name: Run AI Reviewer
-        uses: propstreet/reviewer@v2
-        with:
-          azureOpenAIKey: ${{ secrets.AZURE_PR_AI_OPENAI_API_KEY }}
-          azureOpenAIEndpoint: ${{ secrets.AZURE_PR_AI_OPENAI_REASONING_ENDPOINT }}
-          azureOpenAIDeployment: ${{ secrets.AZURE_PR_AI_OPENAI_REASONING_DEPLOYMENT }}
-          azureOpenAIVersion: ${{ secrets.AZURE_PR_AI_OPENAI_REASONING_VERSION }}
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/HzMemoryCache/Diagnostics/HzActivities.cs b/HzMemoryCache/Diagnostics/HzActivities.cs
index 04c68bb..15e6827 100644
--- a/HzMemoryCache/Diagnostics/HzActivities.cs
+++ b/HzMemoryCache/Diagnostics/HzActivities.cs
@@ -10,22 +10,17 @@ public static class HzActivities
 
         public static class Names
         {
-            public const string SetRedis = "set to redis";
             public const string Get = "get";
-            public const string GetRedis = "get from redis";
             public const string GetOrSetCacheMiss = "get or set on cache miss";
             public const string GetOrSetBatch = "get or set batch";
-            public const string GetBatchRedis = "get batch from redis";
             public const string Remove = "remove";
             public const string RemoveByPattern = "remove by pattern";
-            public const string RemoveRedis = "remove from redis";
             public const string RemoveByPatternRedis = "remove by pattern from redis";
             public const string RemoveItem = "remove item";
             public const string Clear = "clear";
             public const string ExecuteFactory = "execute factory";
 
             public const string NotifyItemChange = "notify item change";
-            public const string Subscribe = "subscribe";
             public const string ValueChanged = "value changed";
             public const string EvictExpired = "evict expired";
             public const string ProcessExpiredEviction = "process expired eviction";
diff --git a/RedisBackedHzCache/RedisBackedHzCache.cs b/RedisBackedHzCache/RedisBackedHzCache.cs
index fa4d56f..3da1ba5 100644
--- a/RedisBackedHzCache/RedisBackedHzCache.cs
+++ b/RedisBackedHzCache/RedisBackedHzCache.cs
@@ -118,7 +118,6 @@ public RedisBackedHzCache(RedisBackedHzCacheOptions options)
             // Messages from other instances through redis.
             redis.GetSubscriber().Subscribe(options.applicationCachePrefix, (_, message) =>
             {
-                using var activity = HzActivities.Source.StartActivityWithCommonTags(HzActivities.Names.Subscribe, HzActivities.Area.RedisBackedHzCache);
                 var invalidationMessage = JsonSerializer.Deserialize<RedisInvalidationMessage>(message.ToString());
                 if (invalidationMessage.applicationCachePrefix != options.applicationCachePrefix)
                 {
@@ -141,7 +140,6 @@ public RedisBackedHzCache(RedisBackedHzCacheOptions options)
 
         private void RedisRemove(string redisKey)
         {
-            using var activity = HzActivities.Source.StartActivityWithCommonTags(HzActivities.Names.RemoveRedis, HzActivities.Area.Redis, key: redisKey);
             redisDb.KeyDelete(redisKey);
         }
 
@@ -153,9 +151,7 @@ private void RedisRemoveByPattern(string redisKey)
 
         private void RedisSet(string redisKey, byte[] objectData, TTLValue ttlValue)
         {
-            using var activity = HzActivities.Source.StartActivityWithCommonTags(HzActivities.Names.SetRedis, HzActivities.Area.Redis, key:redisKey);
-            redisDb.StringSet(redisKey, objectData,
-                TimeSpan.FromMilliseconds(ttlValue.absoluteExpireTime - DateTimeOffset.Now.ToUnixTimeMilliseconds()));
+            redisDb.StringSet(redisKey, objectData, TimeSpan.FromMilliseconds(ttlValue.absoluteExpireTime - DateTimeOffset.Now.ToUnixTimeMilliseconds()));
         }
 
         public void RemoveByPattern(string pattern, bool sendNotification = true)
@@ -205,7 +201,6 @@ public T Get<T>(string key)
 
         private RedisValue GetRedisValue(string key)
         {
-            using var activity = HzActivities.Source.StartActivityWithCommonTags(HzActivities.Names.GetRedis, HzActivities.Area.Redis, key: key);
             return redisDb.StringGet(GetRedisKey(key));
         }
 
@@ -277,8 +272,6 @@ public IList<T> GetOrSetBatch<T>(IList<string> keys, Func<IList<string>, List<Ke
 
         private RedisValue[] RedisBatchResult<T>(RedisKey[] redisKeyList)
         {
-            using var activity = HzActivities.Source.StartActivityWithCommonTags(HzActivities.Names.GetBatchRedis, HzActivities.Area.Redis);
-
             return redisDb.StringGet(redisKeyList);
         }
 
diff --git a/RedisBackedHzCache/RedisBackedHzCache.csproj b/RedisBackedHzCache/RedisBackedHzCache.csproj
index 4bb9afd..0951ad3 100644
--- a/RedisBackedHzCache/RedisBackedHzCache.csproj
+++ b/RedisBackedHzCache/RedisBackedHzCache.csproj
@@ -18,7 +18,7 @@
 
   <ItemGroup>
     <PackageReference Include="K4os.Compression.LZ4" Version="1.3.8" />
-    <PackageReference Include="StackExchange.Redis" Version="2.8.31" />
+    <PackageReference Include="StackExchange.Redis" Version="2.8.37" />
     <PackageReference Include="Utf8Json" Version="1.3.7" />
   </ItemGroup>
 
diff --git a/RedisBackedHzCache/RedisBackedHzCacheAsync.cs b/RedisBackedHzCache/RedisBackedHzCacheAsync.cs
index df01f56..880eff6 100644
--- a/RedisBackedHzCache/RedisBackedHzCacheAsync.cs
+++ b/RedisBackedHzCache/RedisBackedHzCacheAsync.cs
@@ -40,10 +40,9 @@ public async Task<T> GetAsync<T>(string key)
             return value;
         }
 
-        private async Task<RedisValue> GetRedisValueAsync(string key)
+        private Task<RedisValue> GetRedisValueAsync(string key)
         {
-            using var activity = HzActivities.Source.StartActivityWithCommonTags(HzActivities.Names.GetRedis, HzActivities.Area.RedisBackedHzCache, async: true, key: key);
-            return await redisDb.StringGetAsync(GetRedisKey(key)).ConfigureAwait(false);
+            return redisDb.StringGetAsync(GetRedisKey(key));
         }
 
         public Task SetAsync<T>(string key, T value)
@@ -115,7 +114,6 @@ public async Task<IList<T>> GetOrSetBatchAsync<T>(IList<string> keys, Func<IList
 
         private Task<RedisValue[]> RedisBatchResultAsync<T>(RedisKey[] redisKeyList)
         {
-            using var activity = HzActivities.Source.StartActivityWithCommonTags(HzActivities.Names.GetBatchRedis, HzActivities.Area.Redis, async: true);
             return redisDb.StringGetAsync(redisKeyList);
         }
 
diff --git a/RedisIDistributedCache/RedisIDistributedCache.csproj b/RedisIDistributedCache/RedisIDistributedCache.csproj
index 6047397..0b99979 100644
--- a/RedisIDistributedCache/RedisIDistributedCache.csproj
+++ b/RedisIDistributedCache/RedisIDistributedCache.csproj
@@ -18,7 +18,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Extensions.Caching.Abstractions" Version="6.0.0" />
-    <PackageReference Include="StackExchange.Redis" Version="2.8.31" />
+    <PackageReference Include="StackExchange.Redis" Version="2.8.37" />
     <PackageReference Include="Utf8Json" Version="1.3.7" />
   </ItemGroup>