diff --git a/src/Microsoft.AspNetCore.Server.Testing/project.json b/src/Microsoft.AspNetCore.Server.Testing/project.json
index 9661e985c4..29b066d96b 100644
--- a/src/Microsoft.AspNetCore.Server.Testing/project.json
+++ b/src/Microsoft.AspNetCore.Server.Testing/project.json
@@ -46,11 +46,11 @@
       "dependencies": {
         "System.Diagnostics.Process": "4.1.0-*",
         "System.IO.FileSystem": "4.0.1-*",
-        "System.Net.Http": "4.0.1-*",
+        "System.Net.Http": "4.1.0-*",
         "System.Net.Primitives": "4.0.11-*",
         "System.Net.Sockets": "4.1.0-*",
         "System.Runtime.Extensions": "4.1.0-*",
-        "System.Text.RegularExpressions": "4.0.12-*",
+        "System.Text.RegularExpressions": "4.1.0-*",
         "System.Threading": "4.0.11-*",
         "System.Threading.Thread": "4.0.0-*"
       },
diff --git a/src/Microsoft.AspNetCore.TestHost/project.json b/src/Microsoft.AspNetCore.TestHost/project.json
index 0cabef3b92..89d2378f48 100644
--- a/src/Microsoft.AspNetCore.TestHost/project.json
+++ b/src/Microsoft.AspNetCore.TestHost/project.json
@@ -27,7 +27,7 @@
     "netstandard1.3": {
       "dependencies": {
         "System.Diagnostics.Contracts": "4.0.1-*",
-        "System.Net.Http": "4.0.1-*"
+        "System.Net.Http": "4.1.0-*"
       },
       "imports": [
         "portable-net45+win8"