diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools.Test/packages.config b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools.Test/packages.config
index a3a1bab351018c0c8bd8e572898c5a0c453b8646..522d80e10e9fb7c679218b79a05e94ea505c4681 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools.Test/packages.config
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools.Test/packages.config
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="NUnit" version="3.11.0" targetFramework="net45" />
-  <package id="RestSharp" version="105.1.0" targetFramework="net45" developmentDependency="true" />
+  <package id="RestSharp" version="106.12.0" targetFramework="net45" developmentDependency="true" />
   <package id="Newtonsoft.Json" version="12.0.3" targetFramework="net45" developmentDependency="true" />
   <package id="JsonSubTypes" version="1.6.0" targetFramework="net45" developmentDependency="true" />
 </packages>