diff --git a/CHANGELOG.md b/CHANGELOG.md
index eac181da8d..acee26c010 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -30,6 +30,7 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 - Bumps `System.Diagnostics.DiagnosticSource` from 6.0.0 to 6.0.1
 - Bumps `System.Reactive` from 5.0.0 to 6.0.0
 - Bumps `Proc` from 0.6.1 to 0.6.2
+- Bumps `Microsoft.CodeAnalysis.CSharp` from 4.2.0 to 4.6.0
 
 ## [1.3.0]
 ### Added
@@ -71,4 +72,4 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 - Bumps `Microsoft.NETFramework.ReferenceAssemblies` from 1.0.0-preview.2 to 1.0.3
 
 [Unreleased]: https://github.com/opensearch-project/opensearch-net/compare/1.3.0...HEAD
-[1.3.0]: https://github.com/opensearch-project/opensearch-net/compare/1.2.0...1.3.0
+[1.3.0]: https://github.com/opensearch-project/opensearch-net/compare/1.2.0...1.3.0
\ No newline at end of file
diff --git a/src/ApiGenerator/ApiGenerator.csproj b/src/ApiGenerator/ApiGenerator.csproj
index 7ecdcb16ac..e270485685 100644
--- a/src/ApiGenerator/ApiGenerator.csproj
+++ b/src/ApiGenerator/ApiGenerator.csproj
@@ -9,7 +9,7 @@
     <PreserveCompilationContext>true</PreserveCompilationContext>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.2.0" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.6.0" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
     <PackageReference Include="NSwag.Core.Yaml" Version="13.19.0" />
     <PackageReference Include="ShellProgressBar" Version="5.2.0" />
diff --git a/src/ApiGenerator/packages.lock.json b/src/ApiGenerator/packages.lock.json
index 6acd339f10..42d913ee09 100644
--- a/src/ApiGenerator/packages.lock.json
+++ b/src/ApiGenerator/packages.lock.json
@@ -4,11 +4,11 @@
     "net6.0": {
       "Microsoft.CodeAnalysis.CSharp": {
         "type": "Direct",
-        "requested": "[4.2.0, )",
-        "resolved": "4.2.0",
-        "contentHash": "5IDwr8zGNBmDpxtzxxZj9IHwoA6HJ1/WWT/JacqPQJ4Vz/oZXaHNlzcBPVCZRGWUw+QvVdAhCKwEyJyuAuH/wg==",
+        "requested": "[4.6.0, )",
+        "resolved": "4.6.0",
+        "contentHash": "9pyFZUN2Lyu3C0Xfs49kezfH+CzQHMibGsQeQPu0P+GWyH2XXDwmyZ6jAaKQGNUXOJfC2OK01hWMJTJY315uDQ==",
         "dependencies": {
-          "Microsoft.CodeAnalysis.Common": "[4.2.0]"
+          "Microsoft.CodeAnalysis.Common": "[4.6.0]"
         }
       },
       "Newtonsoft.Json": {
@@ -99,21 +99,19 @@
       },
       "Microsoft.CodeAnalysis.Analyzers": {
         "type": "Transitive",
-        "resolved": "3.3.3",
-        "contentHash": "j/rOZtLMVJjrfLRlAMckJLPW/1rze9MT1yfWqSIbUPGRu1m1P0fuo9PmqapwsmePfGB5PJrudQLvmUOAMF0DqQ=="
+        "resolved": "3.3.4",
+        "contentHash": "AxkxcPR+rheX0SmvpLVIGLhOUXAKG56a64kV9VQZ4y9gR9ZmPXnqZvHJnmwLSwzrEP6junUF11vuc+aqo5r68g=="
       },
       "Microsoft.CodeAnalysis.Common": {
         "type": "Transitive",
-        "resolved": "4.2.0",
-        "contentHash": "lbusGcuE7D8FtZawQ4G++UFsRQArPzZN1GGXjPQwu3gvCbw7FXDcBq1zDZrZN1vRzPTVe1qyZMvfGhVUzs1TDg==",
+        "resolved": "4.6.0",
+        "contentHash": "N3uLvekc7DjvE1BX8YW7UH7ldjA4ps/Tun2YmOoSIItJrh1gnQIMKUbK1c3uQUx2NHbLibVZI4o/VB9xb4B7tA==",
         "dependencies": {
-          "Microsoft.CodeAnalysis.Analyzers": "3.3.3",
-          "System.Collections.Immutable": "5.0.0",
-          "System.Memory": "4.5.4",
-          "System.Reflection.Metadata": "5.0.0",
+          "Microsoft.CodeAnalysis.Analyzers": "3.3.4",
+          "System.Collections.Immutable": "7.0.0",
+          "System.Reflection.Metadata": "7.0.0",
           "System.Runtime.CompilerServices.Unsafe": "6.0.0",
-          "System.Text.Encoding.CodePages": "6.0.0",
-          "System.Threading.Tasks.Extensions": "4.5.4"
+          "System.Text.Encoding.CodePages": "7.0.0"
         }
       },
       "Microsoft.CodeAnalysis.Razor": {
@@ -284,8 +282,11 @@
       },
       "System.Collections.Immutable": {
         "type": "Transitive",
-        "resolved": "5.0.0",
-        "contentHash": "FXkLXiK0sVVewcso0imKQoOxjoPAj42R8HtjjbSjVPAzwDfzoyoznWxgA3c38LDbN9SJux1xXoXYAhz98j7r2g=="
+        "resolved": "7.0.0",
+        "contentHash": "dQPcs0U1IKnBdRDBkrCTi1FoajSTBzLcVTpjO4MBCMC7f4pDOIPzgBoX8JjG7X6uZRJ8EBxsi8+DR1JuwjnzOQ==",
+        "dependencies": {
+          "System.Runtime.CompilerServices.Unsafe": "6.0.0"
+        }
       },
       "System.CommandLine": {
         "type": "Transitive",
@@ -356,8 +357,11 @@
       },
       "System.Reflection.Metadata": {
         "type": "Transitive",
-        "resolved": "5.0.0",
-        "contentHash": "5NecZgXktdGg34rh1OenY1rFNDCI8xSjFr+Z4OU4cU06AQHUdRnIIEeWENu3Wl4YowbzkymAIMvi3WyK9U53pQ=="
+        "resolved": "7.0.0",
+        "contentHash": "MclTG61lsD9sYdpNz9xsKBzjsmsfCtcMZYXz/IUr2zlhaTaABonlr1ESeompTgM+Xk+IwtGYU7/voh3YWB/fWw==",
+        "dependencies": {
+          "System.Collections.Immutable": "7.0.0"
+        }
       },
       "System.Reflection.Primitives": {
         "type": "Transitive",
@@ -444,8 +448,8 @@
       },
       "System.Text.Encoding.CodePages": {
         "type": "Transitive",
-        "resolved": "6.0.0",
-        "contentHash": "ZFCILZuOvtKPauZ/j/swhvw68ZRi9ATCfvGbk1QfydmcXBkIWecWKn/250UH7rahZ5OoDBaiAudJtPvLwzw85A==",
+        "resolved": "7.0.0",
+        "contentHash": "LSyCblMpvOe0N3E+8e0skHcrIhgV2huaNcjUUEa8hRtgEAm36aGkRoC8Jxlb6Ra6GSfF29ftduPNywin8XolzQ==",
         "dependencies": {
           "System.Runtime.CompilerServices.Unsafe": "6.0.0"
         }
@@ -478,11 +482,6 @@
           "System.Runtime": "4.3.0"
         }
       },
-      "System.Threading.Tasks.Extensions": {
-        "type": "Transitive",
-        "resolved": "4.5.4",
-        "contentHash": "zteT+G8xuGu6mS+mzDzYXbzS7rd3K6Fjb9RiZlYlJPam2/hU7JCBZBVEcywNuR+oZ1ncTvc/cq0faRr3P01OVg=="
-      },
       "YamlDotNet": {
         "type": "Transitive",
         "resolved": "11.2.1",