diff --git a/samples/IdentitySample.Mvc/project.json b/samples/IdentitySample.Mvc/project.json
index c4c71d619a..16f59acfc8 100644
--- a/samples/IdentitySample.Mvc/project.json
+++ b/samples/IdentitySample.Mvc/project.json
@@ -40,8 +40,11 @@
         "System.Reflection": ""
       }
     },
-    "dnxcore50": {
-      "imports": "portable-net45+win8"
+    "netstandardapp1.5": {
+      "imports": [
+        "dnxcore50",
+        "portable-net45+win8"
+      ]
     }
   },
   "exclude": [
@@ -56,5 +59,7 @@
       "gulp min"
     ]
   },
-  "content": ["appsettings.json"]
+  "content": [
+    "appsettings.json"
+  ]
 }
\ No newline at end of file
diff --git a/src/Microsoft.AspNetCore.Identity.EntityFrameworkCore/project.json b/src/Microsoft.AspNetCore.Identity.EntityFrameworkCore/project.json
index 4d57794db5..de72feb20f 100644
--- a/src/Microsoft.AspNetCore.Identity.EntityFrameworkCore/project.json
+++ b/src/Microsoft.AspNetCore.Identity.EntityFrameworkCore/project.json
@@ -4,7 +4,9 @@
   "compilationOptions": {
     "warningsAsErrors": true,
     "keyFile": "../../tools/Key.snk",
-    "nowarn": [ "CS1591" ],
+    "nowarn": [
+      "CS1591"
+    ],
     "xmlDoc": true
   },
   "repository": {
@@ -22,11 +24,14 @@
         "System.Threading.Tasks": ""
       }
     },
-    "dotnet5.4": {
+    "netstandard1.3": {
       "dependencies": {
         "System.ComponentModel.TypeConverter": "4.0.1-*"
       },
-      "imports": "portable-net451+win8"
+      "imports": [
+        "dotnet5.4",
+        "portable-net451+win8"
+      ]
     }
   }
 }
\ No newline at end of file
diff --git a/src/Microsoft.AspNetCore.Identity/project.json b/src/Microsoft.AspNetCore.Identity/project.json
index e5fc27d884..e6a4bcbd12 100644
--- a/src/Microsoft.AspNetCore.Identity/project.json
+++ b/src/Microsoft.AspNetCore.Identity/project.json
@@ -4,7 +4,9 @@
   "compilationOptions": {
     "warningsAsErrors": true,
     "keyFile": "../../tools/Key.snk",
-    "nowarn": [ "CS1591" ],
+    "nowarn": [
+      "CS1591"
+    ],
     "xmlDoc": true
   },
   "repository": {
@@ -18,9 +20,12 @@
   },
   "frameworks": {
     "net451": {},
-    "dotnet5.4": {
+    "netstandard1.3": {
       "dependencies": {},
-      "imports": "portable-net451+win8"
+      "imports": [
+        "dotnet5.4",
+        "portable-net451+win8"
+      ]
     }
   }
 }
\ No newline at end of file
diff --git a/test/Microsoft.AspNetCore.Identity.EntityFrameworkCore.InMemory.Test/project.json b/test/Microsoft.AspNetCore.Identity.EntityFrameworkCore.InMemory.Test/project.json
index b0906885ac..c9facf7c78 100644
--- a/test/Microsoft.AspNetCore.Identity.EntityFrameworkCore.InMemory.Test/project.json
+++ b/test/Microsoft.AspNetCore.Identity.EntityFrameworkCore.InMemory.Test/project.json
@@ -15,12 +15,15 @@
   },
   "compile": "../Shared/*.cs",
   "frameworks": {
-    "dnxcore50": {
+    "netstandardapp1.5": {
       "dependencies": {
         "moq.netcore": "4.4.0-beta8",
         "dotnet-test-xunit": "1.0.0-dev-*"
       },
-      "imports": "portable-net451+win8"
+      "imports": [
+        "dnxcore50",
+        "portable-net451+win8"
+      ]
     },
     "net451": {
       "frameworkAssemblies": {
@@ -33,4 +36,4 @@
     }
   },
   "testRunner": "xunit"
-}
+}
\ No newline at end of file
diff --git a/test/Microsoft.AspNetCore.Identity.EntityFrameworkCore.Test/project.json b/test/Microsoft.AspNetCore.Identity.EntityFrameworkCore.Test/project.json
index bee0e653d4..e2b139182e 100644
--- a/test/Microsoft.AspNetCore.Identity.EntityFrameworkCore.Test/project.json
+++ b/test/Microsoft.AspNetCore.Identity.EntityFrameworkCore.Test/project.json
@@ -20,12 +20,15 @@
   },
   "compile": "../Shared/*.cs",
   "frameworks": {
-    "dnxcore50": {
+    "netstandardapp1.5": {
       "dependencies": {
         "moq.netcore": "4.4.0-beta8",
         "dotnet-test-xunit": "1.0.0-dev-*"
       },
-      "imports": "portable-net451+win8"
+      "imports": [
+        "dnxcore50",
+        "portable-net451+win8"
+      ]
     },
     "net451": {
       "frameworkAssemblies": {
@@ -38,4 +41,4 @@
     }
   },
   "testRunner": "xunit"
-}
+}
\ No newline at end of file
diff --git a/test/Microsoft.AspNetCore.Identity.InMemory.Test/project.json b/test/Microsoft.AspNetCore.Identity.InMemory.Test/project.json
index 8f3b0c92d0..453ca31e1b 100644
--- a/test/Microsoft.AspNetCore.Identity.InMemory.Test/project.json
+++ b/test/Microsoft.AspNetCore.Identity.InMemory.Test/project.json
@@ -16,12 +16,15 @@
   },
   "compile": "../Shared/*.cs",
   "frameworks": {
-    "dnxcore50": {
+    "netstandardapp1.5": {
       "dependencies": {
         "moq.netcore": "4.4.0-beta8",
         "dotnet-test-xunit": "1.0.0-dev-*"
       },
-      "imports": "portable-net451+win8"
+      "imports": [
+        "dnxcore50",
+        "portable-net451+win8"
+      ]
     },
     "net451": {
       "frameworkAssemblies": {
@@ -34,4 +37,4 @@
     }
   },
   "testRunner": "xunit"
-}
+}
\ No newline at end of file
diff --git a/test/Microsoft.AspNetCore.Identity.Test/project.json b/test/Microsoft.AspNetCore.Identity.Test/project.json
index 492dd200cc..b8a5642243 100644
--- a/test/Microsoft.AspNetCore.Identity.Test/project.json
+++ b/test/Microsoft.AspNetCore.Identity.Test/project.json
@@ -15,13 +15,16 @@
   },
   "compile": "../Shared/*.cs",
   "frameworks": {
-    "dnxcore50": {
+    "netstandardapp1.5": {
       "dependencies": {
         "moq.netcore": "4.4.0-beta8",
         "System.Xml.ReaderWriter": "4.0.10-*",
         "dotnet-test-xunit": "1.0.0-dev-*"
       },
-      "imports": "portable-net451+win8"
+      "imports": [
+        "dnxcore50",
+        "portable-net451+win8"
+      ]
     },
     "net451": {
       "frameworkAssemblies": {
@@ -34,4 +37,4 @@
     }
   },
   "testRunner": "xunit"
-}
+}
\ No newline at end of file