diff --git a/test/Microsoft.AspNetCore.Mvc.TestCommon/project.json b/test/Microsoft.AspNetCore.Mvc.TestCommon/project.json
index 2f953e7602..b9fa0d5d1f 100644
--- a/test/Microsoft.AspNetCore.Mvc.TestCommon/project.json
+++ b/test/Microsoft.AspNetCore.Mvc.TestCommon/project.json
@@ -5,7 +5,6 @@
     "dnx451": {},
     "dnxcore50": {
       "dependencies": {
-        "System.Runtime": "4.0.21-*"
       }
     }
   }
diff --git a/test/Microsoft.AspNetCore.Mvc.TestDiagnosticListener.Sources/project.json b/test/Microsoft.AspNetCore.Mvc.TestDiagnosticListener.Sources/project.json
index 2f953e7602..b9fa0d5d1f 100644
--- a/test/Microsoft.AspNetCore.Mvc.TestDiagnosticListener.Sources/project.json
+++ b/test/Microsoft.AspNetCore.Mvc.TestDiagnosticListener.Sources/project.json
@@ -5,7 +5,6 @@
     "dnx451": {},
     "dnxcore50": {
       "dependencies": {
-        "System.Runtime": "4.0.21-*"
       }
     }
   }
diff --git a/test/WebSites/UserClassLibrary/project.json b/test/WebSites/UserClassLibrary/project.json
index cbce77786c..b6ff46b7cb 100644
--- a/test/WebSites/UserClassLibrary/project.json
+++ b/test/WebSites/UserClassLibrary/project.json
@@ -3,7 +3,6 @@
         "dnx451": { },
         "dnxcore50": {
             "dependencies": {
-                "System.Runtime": "4.0.21-*"
             }
         }
     }