diff --git a/apitoolkit-dotnet.csproj b/apitoolkit-dotnet.csproj
index 761b25e..e6bf3b9 100644
--- a/apitoolkit-dotnet.csproj
+++ b/apitoolkit-dotnet.csproj
@@ -20,7 +20,7 @@
 
   <ItemGroup>
     <None Include="README.md" Pack="true" PackagePath="\"/>
-    <PackageReference Include="Google.Apis.Auth" Version="1.62.0" />
+    <PackageReference Include="Google.Apis.Auth" Version="1.64.0" />
     <PackageReference Include="Google.Cloud.PubSub.V1" Version="3.7.0" />
     <PackageReference Include="Microsoft.AspNetCore.Http" Version="2.2.2" />
     <PackageReference Include="Microsoft.AspNetCore.Http.Extensions" Version="2.2.0" />