diff --git a/Orleans.Providers.MongoDB/Orleans.Providers.MongoDB.csproj b/Orleans.Providers.MongoDB/Orleans.Providers.MongoDB.csproj
index 27ed350..04492a3 100644
--- a/Orleans.Providers.MongoDB/Orleans.Providers.MongoDB.csproj
+++ b/Orleans.Providers.MongoDB/Orleans.Providers.MongoDB.csproj
@@ -15,7 +15,7 @@
     <PackageTags>Orleans OrleansProviders MongoDB</PackageTags>
     <SymbolPackageFormat>snupkg</SymbolPackageFormat>
     <TargetFrameworks>net8.0</TargetFrameworks>
-    <Version>8.0.1</Version>
+    <Version>8.0.2</Version>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/Orleans.Providers.MongoDB/StorageProviders/JsonBsonConverter.cs b/Orleans.Providers.MongoDB/StorageProviders/JsonBsonConverter.cs
index b7d47c7..cca0a48 100644
--- a/Orleans.Providers.MongoDB/StorageProviders/JsonBsonConverter.cs
+++ b/Orleans.Providers.MongoDB/StorageProviders/JsonBsonConverter.cs
@@ -88,11 +88,11 @@ public static BsonValue ToBson(this JToken source)
 
                         if (value is DateTime dateTime)
                         {
-                            return dateTime.ToString("yyyy-MM-ddTHH:mm:ssK");
+                            return dateTime.ToString("yyyy-MM-ddTHH:mm:ss.FFFFFFFK");
                         }
                         else if (value is DateTimeOffset dateTimeOffset)
                         {
-                            return dateTimeOffset.UtcDateTime.ToString("yyyy-MM-ddTHH:mm:ssK");
+                            return dateTimeOffset.UtcDateTime.ToString("yyyy-MM-ddTHH:mm:ss.FFFFFFFK");
                         }
                         else
                         {