title: Change version of .net core in Azure App Service
body: <p>i have an asp.net core app who works correctly on my computer but not on azure app service:</p>
  
  <p>In one of my api, i return a dynamic type.
  from the api runed on my computer i got (with .net core version : 1.0.1):
  <code>{"id":2,"color":"#3da1e8   ","logo":"","name":"...","companySecurities":[]}</code></p>
  
  <p>from the api runed on azure app service i got (with .net core version :  1.1.0-preview1-001100-00):
  <code>{"id":2,"color":"#3da1e8   ","logo":"","name":"...","companySecurities":[]</code></p>
  
  <p>You can see the the last bracket disapear on azure app service.</p>
  
  <p>I want to know if there is a way to change the .net core version of azure app service to 1.0.1 .</p>