diff --git a/src/Microsoft.AspNetCore.Diagnostics.Abstractions/project.json b/src/Microsoft.AspNetCore.Diagnostics.Abstractions/project.json
index 3ab48e57af..22d1c9661f 100644
--- a/src/Microsoft.AspNetCore.Diagnostics.Abstractions/project.json
+++ b/src/Microsoft.AspNetCore.Diagnostics.Abstractions/project.json
@@ -13,7 +13,6 @@
     "net451": {},
     "dotnet5.4": {
       "dependencies": {
-        "System.Runtime": "4.0.21-*",
         "System.Resources.ResourceManager": "4.0.1-*"
       }
     }
diff --git a/src/PageGenerator/project.json b/src/PageGenerator/project.json
index 1a8fe3d804..5cc031956a 100644
--- a/src/PageGenerator/project.json
+++ b/src/PageGenerator/project.json
@@ -18,7 +18,6 @@
     "dnxcore50": {
       "dependencies": {
         "System.Console": "4.0.0-*",
-        "System.Runtime": "4.0.21-*"
       }
     }
   },