diff --git a/.github/workflows/publish-nuget-Package.yml b/.github/workflows/publish-nuget-Package.yml
index 987e9b7..0fc5ab1 100644
--- a/.github/workflows/publish-nuget-Package.yml
+++ b/.github/workflows/publish-nuget-Package.yml
@@ -1,7 +1,7 @@
 name: Publish Nuget Package
 
 env:
-    NUGET_PACKAGE_NAME_VERSION: "GmailHelper.1.9.21.nupkg"
+    NUGET_PACKAGE_NAME_VERSION: "GmailHelper.1.9.22.nupkg"
 
 on:
   workflow_dispatch:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index c4b41a2..10c9ad7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,10 @@ All notable changes to this project documented here.
 
 ## [Released]
 
+## [1.9.22](https://www.nuget.org/packages/GmailHelper/1.9.22) - 2024-02-17
+### Changed
+- Gmail API dependency update ('1.65.0.3287' -> '1.66.0.3287').
+
 ## [1.9.21](https://www.nuget.org/packages/GmailHelper/1.9.21) - 2024-02-10
 ### Changed
 - Gmail API dependency update ('1.64.0.3287' -> '1.65.0.3287').
diff --git a/GmailAPIHelper/GmailAPIHelper.csproj b/GmailAPIHelper/GmailAPIHelper.csproj
index 38599d6..64df859 100644
--- a/GmailAPIHelper/GmailAPIHelper.csproj
+++ b/GmailAPIHelper/GmailAPIHelper.csproj
@@ -30,8 +30,8 @@ Solution Version:
     <PackageId>GmailHelper</PackageId>
     <RepositoryType>git</RepositoryType>
     <PackageLicenseFile>LICENSE</PackageLicenseFile>
-    <PackageReleaseNotes>1. Gmail API dependency update ('1.64.0.3287' -&gt; '1.65.0.3287').</PackageReleaseNotes>
-    <Version>1.9.21</Version>
+    <PackageReleaseNotes>1. Gmail API dependency update ('1.65.0.3287' -&gt; '1.66.0.3287').</PackageReleaseNotes>
+    <Version>1.9.22</Version>
   </PropertyGroup>
 
   <ItemGroup>