diff --git a/samples/LocalizationSample/project.json b/samples/LocalizationSample/project.json
index fc4e2a0b98..f0b995b1db 100644
--- a/samples/LocalizationSample/project.json
+++ b/samples/LocalizationSample/project.json
@@ -17,8 +17,8 @@
     "dnx451": { },
     "dnxcore50": {
       "dependencies": {
-        "System.Globalization": "4.0.10-*",
-        "System.Globalization.Extensions": "4.0.0-*"
+        "System.Globalization": "4.0.10-beta-*",
+        "System.Globalization.Extensions": "4.0.0-beta-*"
       }
     }
   },
diff --git a/src/Microsoft.AspNet.Localization/project.json b/src/Microsoft.AspNet.Localization/project.json
index 0a8b395c28..a32ebadea8 100644
--- a/src/Microsoft.AspNet.Localization/project.json
+++ b/src/Microsoft.AspNet.Localization/project.json
@@ -13,11 +13,11 @@
     "dnx451": { },
     "dnxcore50": {
       "dependencies": {
-        "Microsoft.CSharp": "4.0.0-*",
-        "System.Collections": "4.0.10-*",
-        "System.Globalization": "4.0.10-*",
-        "System.Linq": "4.0.0-*",
-        "System.Threading": "4.0.10-*"
+        "Microsoft.CSharp": "4.0.0-beta-*",
+        "System.Collections": "4.0.10-beta-*",
+        "System.Globalization": "4.0.10-beta-*",
+        "System.Linq": "4.0.0-beta-*",
+        "System.Threading": "4.0.10-beta-*"
       }
     }
   }
diff --git a/src/Microsoft.Framework.Globalization.CultureInfoCache/project.json b/src/Microsoft.Framework.Globalization.CultureInfoCache/project.json
index 2a10252ec1..0da4293651 100644
--- a/src/Microsoft.Framework.Globalization.CultureInfoCache/project.json
+++ b/src/Microsoft.Framework.Globalization.CultureInfoCache/project.json
@@ -9,10 +9,10 @@
     "dnx451": { },
     "dnxcore50": {
       "dependencies": {
-        "Microsoft.CSharp": "4.0.0-*",
-        "System.Collections": "4.0.10-*",
-        "System.Collections.Concurrent": "4.0.10-*",
-        "System.Globalization": "4.0.10-*"
+        "Microsoft.CSharp": "4.0.0-beta-*",
+        "System.Collections": "4.0.10-beta-*",
+        "System.Collections.Concurrent": "4.0.10-beta-*",
+        "System.Globalization": "4.0.10-beta-*"
       }
     }
   }
diff --git a/src/Microsoft.Framework.Localization.Abstractions/project.json b/src/Microsoft.Framework.Localization.Abstractions/project.json
index bb9914834f..71c915d446 100644
--- a/src/Microsoft.Framework.Localization.Abstractions/project.json
+++ b/src/Microsoft.Framework.Localization.Abstractions/project.json
@@ -10,11 +10,11 @@
     "dnx451": { },
     "dnxcore50": {
       "dependencies": {
-        "Microsoft.CSharp": "4.0.0-*",
-        "System.Collections": "4.0.10-*",
-        "System.Globalization": "4.0.10-*",
-        "System.Reflection": "4.0.10-*",
-        "System.Runtime": "4.0.20-*"
+        "Microsoft.CSharp": "4.0.0-beta-*",
+        "System.Collections": "4.0.10-beta-*",
+        "System.Globalization": "4.0.10-beta-*",
+        "System.Reflection": "4.0.10-beta-*",
+        "System.Runtime": "4.0.20-beta-*"
       }
     }
   }
diff --git a/src/Microsoft.Framework.Localization/project.json b/src/Microsoft.Framework.Localization/project.json
index 5e53c266ea..cbe316fa97 100644
--- a/src/Microsoft.Framework.Localization/project.json
+++ b/src/Microsoft.Framework.Localization/project.json
@@ -14,13 +14,13 @@
     "dnx451": { },
     "dnxcore50": {
       "dependencies": {
-        "Microsoft.CSharp": "4.0.0-*",
-        "System.Collections": "4.0.10-*",
-        "System.Collections.Concurrent": "4.0.10-*",
-        "System.Globalization": "4.0.10-*",
-        "System.Linq": "4.0.0-*",
-        "System.Resources.ResourceManager": "4.0.0-*",
-        "System.Threading": "4.0.10-*"
+        "Microsoft.CSharp": "4.0.0-beta-*",
+        "System.Collections": "4.0.10-beta-*",
+        "System.Collections.Concurrent": "4.0.10-beta-*",
+        "System.Globalization": "4.0.10-beta-*",
+        "System.Linq": "4.0.0-beta-*",
+        "System.Resources.ResourceManager": "4.0.0-beta-*",
+        "System.Threading": "4.0.10-beta-*"
       }
     }
   }
diff --git a/test/Microsoft.Framework.Localization.Test/project.json b/test/Microsoft.Framework.Localization.Test/project.json
index 420577a021..363986e497 100644
--- a/test/Microsoft.Framework.Localization.Test/project.json
+++ b/test/Microsoft.Framework.Localization.Test/project.json
@@ -3,7 +3,7 @@
     "xunit": "2.1.0-*",
     "xunit.runner.dnx": "2.1.0-*",
     "Microsoft.Framework.Localization": "1.0.0-*",
-    "System.Reflection": "4.0.10-*"
+    "System.Reflection": "4.0.10-beta-*"
   },
 
   "commands": {