diff --git a/modules/openapi-generator/src/main/resources/csharp-netcore/HttpSigningConfiguration.mustache b/modules/openapi-generator/src/main/resources/csharp-netcore/HttpSigningConfiguration.mustache
index 0f59f32b478d..409c9014e569 100644
--- a/modules/openapi-generator/src/main/resources/csharp-netcore/HttpSigningConfiguration.mustache
+++ b/modules/openapi-generator/src/main/resources/csharp-netcore/HttpSigningConfiguration.mustache
@@ -146,7 +146,6 @@ namespace {{packageName}}.Client
             if (requestOptions.Data != null)
             {
                 var serializerSettings = new JsonSerializerSettings();
-                serializerSettings.ContractResolver = new CamelCasePropertyNamesContractResolver();
                 requestBody = JsonConvert.SerializeObject(requestOptions.Data, serializerSettings);
             }
 
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Client/HttpSigningConfiguration.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Client/HttpSigningConfiguration.cs
index 3bf59ad7f451..fbee426b1104 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Client/HttpSigningConfiguration.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Client/HttpSigningConfiguration.cs
@@ -146,7 +146,6 @@ internal Dictionary<string, string> GetHttpSignedHeader(string basePath,string m
             if (requestOptions.Data != null)
             {
                 var serializerSettings = new JsonSerializerSettings();
-                serializerSettings.ContractResolver = new CamelCasePropertyNamesContractResolver();
                 requestBody = JsonConvert.SerializeObject(requestOptions.Data, serializerSettings);
             }
 
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Client/HttpSigningConfiguration.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Client/HttpSigningConfiguration.cs
index 3bf59ad7f451..fbee426b1104 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Client/HttpSigningConfiguration.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Client/HttpSigningConfiguration.cs
@@ -146,7 +146,6 @@ internal Dictionary<string, string> GetHttpSignedHeader(string basePath,string m
             if (requestOptions.Data != null)
             {
                 var serializerSettings = new JsonSerializerSettings();
-                serializerSettings.ContractResolver = new CamelCasePropertyNamesContractResolver();
                 requestBody = JsonConvert.SerializeObject(requestOptions.Data, serializerSettings);
             }