diff --git a/samples/HelloWorld/project.json b/samples/HelloWorld/project.json
index f015cf95d6..123a203698 100644
--- a/samples/HelloWorld/project.json
+++ b/samples/HelloWorld/project.json
@@ -12,8 +12,7 @@
             "System.Globalization": "4.0.10.0",
             "System.IO" : "4.0.0.0",
             "System.Runtime" : "4.0.20.0",
-            "System.Threading.Tasks": "4.0.10.0",
-            "System.Text.Encoding": "4.0.20.0"
+            "System.Threading.Tasks": "4.0.10.0"
         }
     }
   }
diff --git a/samples/SelfHostServer/project.json b/samples/SelfHostServer/project.json
index 4caf1e1901..cb620bf621 100644
--- a/samples/SelfHostServer/project.json
+++ b/samples/SelfHostServer/project.json
@@ -24,8 +24,7 @@
         "System.Resources.ResourceManager": "4.0.0.0",
         "System.Runtime": "4.0.20.0",
         "System.Runtime.Extensions": "4.0.10.0",
-        "System.Runtime.InteropServices": "4.0.10.0",
-        "System.Text.Encoding": "4.0.10.0",
+        "System.Runtime.InteropServices": "4.0.20.0",
         "System.Threading.Tasks": "4.0.10.0"
       }
     }