diff --git a/src/Microsoft.AspNet.PageExecutionInstrumentation/project.json b/src/Microsoft.AspNet.PageExecutionInstrumentation/project.json
index ffa57dddbb..cc5c4934d0 100644
--- a/src/Microsoft.AspNet.PageExecutionInstrumentation/project.json
+++ b/src/Microsoft.AspNet.PageExecutionInstrumentation/project.json
@@ -8,7 +8,7 @@
         "aspnet50": { },
         "aspnetcore50": {
             "dependencies": {
-                "System.IO": "4.0.0-beta-*"
+                "System.IO": "4.0.10-beta-*"
             }
         }
     }