diff --git a/test/Microsoft.AspNetCore.Mvc.Core.Test/project.json b/test/Microsoft.AspNetCore.Mvc.Core.Test/project.json
index 5fbef71ee6..759b771e5c 100644
--- a/test/Microsoft.AspNetCore.Mvc.Core.Test/project.json
+++ b/test/Microsoft.AspNetCore.Mvc.Core.Test/project.json
@@ -30,7 +30,8 @@
           "version": "1.2.0-*",
           "type": "platform"
         },
-        "System.Diagnostics.TraceSource": "4.4.0-*"
+        "System.Diagnostics.TraceSource": "4.4.0-*",
+        "System.Xml.XmlDocument": "4.4.0-*"
       }
     },
     "net451": {}
diff --git a/test/Microsoft.AspNetCore.Mvc.Test/project.json b/test/Microsoft.AspNetCore.Mvc.Test/project.json
index 0701bb0232..4ddaf58199 100644
--- a/test/Microsoft.AspNetCore.Mvc.Test/project.json
+++ b/test/Microsoft.AspNetCore.Mvc.Test/project.json
@@ -20,7 +20,8 @@
           "version": "1.2.0-*",
           "type": "platform"
         },
-        "System.Diagnostics.TraceSource": "4.4.0-*"
+        "System.Diagnostics.TraceSource": "4.4.0-*",
+        "System.Xml.XmlDocument": "4.4.0-*"
       }
     },
     "net451": {}