diff --git a/Flow.Launcher/Storage/QueryHistory.cs b/Flow.Launcher/Storage/QueryHistory.cs
index 2b21036059d..a5383b179ab 100644
--- a/Flow.Launcher/Storage/QueryHistory.cs
+++ b/Flow.Launcher/Storage/QueryHistory.cs
@@ -1,13 +1,14 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using Flow.Launcher.Plugin;
+using System.Text.Json.Serialization;
 
 namespace Flow.Launcher.Storage
 {
     public class History
     {
-        public List<HistoryItem> Items { get; set; } = new List<HistoryItem>();
+        [JsonInclude]
+        public List<HistoryItem> Items { get; private set; } = new List<HistoryItem>();
 
         private int _maxHistory = 300;
 
diff --git a/Flow.Launcher/Storage/TopMostRecord.cs b/Flow.Launcher/Storage/TopMostRecord.cs
index c92ef49562a..052c296cdde 100644
--- a/Flow.Launcher/Storage/TopMostRecord.cs
+++ b/Flow.Launcher/Storage/TopMostRecord.cs
@@ -1,6 +1,4 @@
 using System.Collections.Generic;
-using System.Linq;
-using System.Text.Json;
 using System.Text.Json.Serialization;
 using Flow.Launcher.Plugin;
 
@@ -9,14 +7,8 @@ namespace Flow.Launcher.Storage
     // todo this class is not thread safe.... but used from multiple threads.
     public class TopMostRecord
     {
-        /// <summary>
-        /// You should not directly access this field
-        /// <para>
-        /// It is public due to System.Text.Json limitation in version 3.1
-        /// </para>
-        /// </summary>
-        /// TODO: Set it to private
-        public Dictionary<string, Record> records { get; set; } = new Dictionary<string, Record>();
+        [JsonInclude]
+        public Dictionary<string, Record> records { get; private set; } = new Dictionary<string, Record>();
 
         internal bool IsTopMost(Result result)
         {
diff --git a/Flow.Launcher/Storage/UserSelectedRecord.cs b/Flow.Launcher/Storage/UserSelectedRecord.cs
index bc7a2da73ce..fd3d87fc4c6 100644
--- a/Flow.Launcher/Storage/UserSelectedRecord.cs
+++ b/Flow.Launcher/Storage/UserSelectedRecord.cs
@@ -7,15 +7,8 @@ namespace Flow.Launcher.Storage
 {
     public class UserSelectedRecord
     {
-        /// <summary>
-        /// You should not directly access this field
-        /// <para>
-        /// It is public due to System.Text.Json limitation in version 3.1
-        /// </para>
-        /// </summary>
-        /// TODO: Set it to private
-        [JsonPropertyName("records")]
-        public Dictionary<string, int> records { get; set; }
+        [JsonInclude]
+        public Dictionary<string, int> records { get; private set; }
 
         public UserSelectedRecord()
         {
diff --git a/Plugins/Flow.Launcher.Plugin.WebSearch/SuggestionSources/Bing.cs b/Plugins/Flow.Launcher.Plugin.WebSearch/SuggestionSources/Bing.cs
index 28868100f22..966a6ca16db 100644
--- a/Plugins/Flow.Launcher.Plugin.WebSearch/SuggestionSources/Bing.cs
+++ b/Plugins/Flow.Launcher.Plugin.WebSearch/SuggestionSources/Bing.cs
@@ -17,7 +17,6 @@ class Bing : SuggestionSource
     {
         public override async Task<List<string>> Suggestions(string query, CancellationToken token)
         {
-            JsonElement json;
 
             try
             {
@@ -25,7 +24,20 @@ public override async Task<List<string>> Suggestions(string query, CancellationT
                 
                 using var resultStream = await Http.GetStreamAsync(api + Uri.EscapeUriString(query), token).ConfigureAwait(false);
 
-                json = (await JsonDocument.ParseAsync(resultStream, cancellationToken: token)).RootElement.GetProperty("AS");
+                using var json = (await JsonDocument.ParseAsync(resultStream, cancellationToken: token));
+                var root = json.RootElement.GetProperty("AS");
+
+                if (root.GetProperty("FullResults").GetInt32() == 0)
+                    return new List<string>();
+
+                return root.GetProperty("Results")
+                           .EnumerateArray()
+                           .SelectMany(r => r.GetProperty("Suggests")
+                                             .EnumerateArray()
+                                             .Select(s => s.GetProperty("Txt").GetString()))
+                           .ToList();
+
+
 
             }
             catch (Exception e) when (e is HttpRequestException || e.InnerException is TimeoutException)
@@ -41,18 +53,7 @@ public override async Task<List<string>> Suggestions(string query, CancellationT
             {
                 Log.Exception("|Bing.Suggestions|can't parse suggestions", e);
                 return new List<string>();
-            }
-
-            if (json.GetProperty("FullResults").GetInt32() == 0)
-                return new List<string>();
-
-            return json.GetProperty("Results")
-                       .EnumerateArray()
-                       .SelectMany(r => r.GetProperty("Suggests")
-                                         .EnumerateArray()
-                                         .Select(s => s.GetProperty("Txt").GetString()))
-                       .ToList();
-
+            } 
         }
 
         public override string ToString()
diff --git a/Plugins/Flow.Launcher.Plugin.WebSearch/SuggestionSources/Google.cs b/Plugins/Flow.Launcher.Plugin.WebSearch/SuggestionSources/Google.cs
index a06deea296b..91ab921b634 100644
--- a/Plugins/Flow.Launcher.Plugin.WebSearch/SuggestionSources/Google.cs
+++ b/Plugins/Flow.Launcher.Plugin.WebSearch/SuggestionSources/Google.cs
@@ -16,15 +16,20 @@ public class Google : SuggestionSource
     {
         public override async Task<List<string>> Suggestions(string query, CancellationToken token)
         {
-            JsonDocument json;
-
             try
             {
                 const string api = "https://www.google.com/complete/search?output=chrome&q=";
 
                 using var resultStream = await Http.GetStreamAsync(api + Uri.EscapeUriString(query)).ConfigureAwait(false);
 
-                json = await JsonDocument.ParseAsync(resultStream, cancellationToken: token);
+                using var json = await JsonDocument.ParseAsync(resultStream, cancellationToken: token);
+
+                if (json == null)
+                    return new List<string>();
+
+                var results = json.RootElement.EnumerateArray().ElementAt(1);
+
+                return results.EnumerateArray().Select(o => o.GetString()).ToList();
 
             }
             catch (Exception e) when (e is HttpRequestException || e.InnerException is TimeoutException)
@@ -41,11 +46,6 @@ public override async Task<List<string>> Suggestions(string query, CancellationT
                 Log.Exception("|Google.Suggestions|can't parse suggestions", e);
                 return new List<string>();
             }
-
-            var results = json?.RootElement.EnumerateArray().ElementAt(1);
-
-            return results?.EnumerateArray().Select(o => o.GetString()).ToList() ?? new List<string>();
-
         }
 
         public override string ToString()
diff --git a/Plugins/Flow.Launcher.Plugin.WebSearch/plugin.json b/Plugins/Flow.Launcher.Plugin.WebSearch/plugin.json
index 996c9b686e2..e9f237a586e 100644
--- a/Plugins/Flow.Launcher.Plugin.WebSearch/plugin.json
+++ b/Plugins/Flow.Launcher.Plugin.WebSearch/plugin.json
@@ -25,7 +25,7 @@
   "Name": "Web Searches",
   "Description": "Provide the web search ability",
   "Author": "qianlifeng",
-  "Version": "1.3.3",
+  "Version": "1.3.4",
   "Language": "csharp",
   "Website": "https://github.com/Flow-Launcher/Flow.Launcher",
   "ExecuteFileName": "Flow.Launcher.Plugin.WebSearch.dll",