diff --git a/src/Microsoft.AspNet.Security.DataProtection/project.json b/src/Microsoft.AspNet.Security.DataProtection/project.json
index 2029bd04dd..e1784c0b4e 100644
--- a/src/Microsoft.AspNet.Security.DataProtection/project.json
+++ b/src/Microsoft.AspNet.Security.DataProtection/project.json
@@ -11,7 +11,7 @@
         "System.Reflection": "4.0.10.0",
         "System.Resources.ResourceManager": "4.0.0.0",
         "System.Runtime": "4.0.20.0",
-        "System.Runtime.InteropServices": "4.0.10.0"
+        "System.Runtime.InteropServices": "4.0.20.0"
       }
     }
   },