diff --git a/src/ConductorSharp.Client/ConductorSharp.Client.csproj b/src/ConductorSharp.Client/ConductorSharp.Client.csproj
index e36a6b08..fd97aaeb 100644
--- a/src/ConductorSharp.Client/ConductorSharp.Client.csproj
+++ b/src/ConductorSharp.Client/ConductorSharp.Client.csproj
@@ -6,7 +6,7 @@
 		<Authors>Codaxy</Authors>
 		<Company>Codaxy</Company>
 		<PackageId>ConductorSharp.Client</PackageId>
-		<Version>2.4.0</Version>
+		<Version>2.4.1</Version>
 		<Description>Client library for Netflix Conductor, with some additional quality of life features.</Description>
 		<RepositoryUrl>https://github.com/codaxy/conductor-sharp</RepositoryUrl>
 		<PackageTags>netflix;conductor</PackageTags>
diff --git a/src/ConductorSharp.Client/Model/Common/TaskDefinition.cs b/src/ConductorSharp.Client/Model/Common/TaskDefinition.cs
index 1fbcaafa..78134158 100644
--- a/src/ConductorSharp.Client/Model/Common/TaskDefinition.cs
+++ b/src/ConductorSharp.Client/Model/Common/TaskDefinition.cs
@@ -10,10 +10,10 @@ public class TaskDefinition
         public string OwnerApp { get; set; } = "test@test.local";
 
         [JsonProperty("createTime")]
-        public long CreateTime { get; set; }
+        public long? CreateTime { get; set; }
 
         [JsonProperty("updateTime")]
-        public long UpdateTime { get; set; }
+        public long? UpdateTime { get; set; }
 
         [JsonProperty("createdBy")]
         public string CreatedBy { get; set; }
diff --git a/src/ConductorSharp.Client/Model/Common/WorkflowDefinition.cs b/src/ConductorSharp.Client/Model/Common/WorkflowDefinition.cs
index 64081597..586d29e6 100644
--- a/src/ConductorSharp.Client/Model/Common/WorkflowDefinition.cs
+++ b/src/ConductorSharp.Client/Model/Common/WorkflowDefinition.cs
@@ -157,10 +157,10 @@ public JObject InputParameters
         public string OwnerApp { get; set; }
 
         [JsonProperty("createTime")]
-        public long CreateTime { get; set; }
+        public long? CreateTime { get; set; }
 
         [JsonProperty("updateTime")]
-        public long UpdateTime { get; set; }
+        public long? UpdateTime { get; set; }
 
         [JsonProperty("createdBy")]
         public string CreatedBy { get; set; }
diff --git a/src/ConductorSharp.Engine/Builders/TaskDefinitionBuilder.cs b/src/ConductorSharp.Engine/Builders/TaskDefinitionBuilder.cs
index 132b0ddb..198971ee 100644
--- a/src/ConductorSharp.Engine/Builders/TaskDefinitionBuilder.cs
+++ b/src/ConductorSharp.Engine/Builders/TaskDefinitionBuilder.cs
@@ -69,6 +69,8 @@ public TaskDefinition Build(Type taskType, Action<TaskDefinitionOptions> updateO
                 UpdatedBy = options.UpdatedBy,
                 InputTemplate = options.InputTemplate,
                 ExecutionNameSpace = options.ExecutionNameSpace,
+                CreateTime = 0,
+                UpdateTime = 0
             };
         }
 
diff --git a/src/ConductorSharp.Engine/Builders/WorkflowDefinitionBuilder.cs b/src/ConductorSharp.Engine/Builders/WorkflowDefinitionBuilder.cs
index c95bf07b..ae5439ba 100644
--- a/src/ConductorSharp.Engine/Builders/WorkflowDefinitionBuilder.cs
+++ b/src/ConductorSharp.Engine/Builders/WorkflowDefinitionBuilder.cs
@@ -135,7 +135,9 @@ public WorkflowDefinition Build()
                 OutputParameters = BuildContext.Outputs,
                 OwnerApp = BuildContext.WorkflowOptions.OwnerApp,
                 OwnerEmail = BuildContext.WorkflowOptions.OwnerEmail,
-                Version = BuildContext.WorkflowOptions.Version
+                Version = BuildContext.WorkflowOptions.Version,
+                CreateTime = 0,
+                UpdateTime = 0
             };
         }
 
diff --git a/src/ConductorSharp.Engine/ConductorSharp.Engine.csproj b/src/ConductorSharp.Engine/ConductorSharp.Engine.csproj
index 693cd6f3..b9f97ac1 100644
--- a/src/ConductorSharp.Engine/ConductorSharp.Engine.csproj
+++ b/src/ConductorSharp.Engine/ConductorSharp.Engine.csproj
@@ -6,7 +6,7 @@
     <Authors>Codaxy</Authors>
 	<Company>Codaxy</Company>
 	<PackageId>ConductorSharp.Engine</PackageId>
-	<Version>2.4.0</Version>
+	<Version>2.4.1</Version>
     <Description>Client library for Netflix Conductor, with some additional quality of life features.</Description>
 	<RepositoryUrl>https://github.com/codaxy/conductor-sharp</RepositoryUrl>
 	<PackageTags>netflix;conductor</PackageTags>
diff --git a/src/ConductorSharp.Patterns/ConductorSharp.Patterns.csproj b/src/ConductorSharp.Patterns/ConductorSharp.Patterns.csproj
index 6b03c307..83709b08 100644
--- a/src/ConductorSharp.Patterns/ConductorSharp.Patterns.csproj
+++ b/src/ConductorSharp.Patterns/ConductorSharp.Patterns.csproj
@@ -6,7 +6,7 @@
     <GeneratePackageOnBuild>False</GeneratePackageOnBuild>
     <Authors>Codaxy</Authors>
     <Company>Codaxy</Company>
-    <Version>2.4.0</Version>
+    <Version>2.4.1</Version>
   </PropertyGroup>
 
 	<ItemGroup>