diff --git a/TestAssets/TestProjects/TestMscorlibReference/project.json b/TestAssets/TestProjects/TestMscorlibReference/project.json
index 7c6958e2a..de5d4d2a9 100644
--- a/TestAssets/TestProjects/TestMscorlibReference/project.json
+++ b/TestAssets/TestProjects/TestMscorlibReference/project.json
@@ -2,6 +2,11 @@
   "version": "1.0.0-*",
   "dependencies": {},
   "frameworks": {
+    "netstandardapp1.5": {
+      "dependencies": {
+        "NETStandard.Library": "1.5.0-rc2-23931"
+      }
+    },
     "net451": {
       "frameworkAssemblies": {
         "mscorlib": ""
diff --git a/TestAssets/TestProjects/TestSystemCoreReference/project.json b/TestAssets/TestProjects/TestSystemCoreReference/project.json
index 0f97ea62c..a0950feb6 100644
--- a/TestAssets/TestProjects/TestSystemCoreReference/project.json
+++ b/TestAssets/TestProjects/TestSystemCoreReference/project.json
@@ -2,6 +2,11 @@
   "version": "1.0.0-*",
   "dependencies": {},
   "frameworks": {
+    "netstandardapp1.5": {
+      "dependencies": {
+        "NETStandard.Library": "1.5.0-rc2-23931"
+      }
+    },
     "net451": {
       "frameworkAssemblies": {
         "System": ""
diff --git a/TestAssets/TestProjects/TestSystemReference/project.json b/TestAssets/TestProjects/TestSystemReference/project.json
index 2b3f5bcb7..98a992cf4 100644
--- a/TestAssets/TestProjects/TestSystemReference/project.json
+++ b/TestAssets/TestProjects/TestSystemReference/project.json
@@ -2,6 +2,11 @@
   "version": "1.0.0-*",
   "dependencies": {},
   "frameworks": {
+    "netstandardapp1.5": {
+      "dependencies": {
+        "NETStandard.Library": "1.5.0-rc2-23931"
+      }
+    },
     "net451": {
       "frameworkAssemblies": {
         "System.Core": ""