diff --git a/src/Microsoft.DotNet.Tools.Compiler.Csc/project.json b/src/Microsoft.DotNet.Tools.Compiler.Csc/project.json
index 29f5ffff6..14bf671cf 100644
--- a/src/Microsoft.DotNet.Tools.Compiler.Csc/project.json
+++ b/src/Microsoft.DotNet.Tools.Compiler.Csc/project.json
@@ -7,7 +7,7 @@
     "dependencies": {
         "NETStandard.Library": "1.0.0-rc2-23616",
         
-        "Microsoft.Net.Compilers.netcore": "1.2.0-beta-20151224-03",
+        "Microsoft.Net.Compilers.netcore": "1.2.0-beta1-20151228-02",
 
         "Microsoft.DotNet.Cli.Utils": {
             "type": "build",
diff --git a/src/Microsoft.DotNet.Tools.Repl.Csi/project.json b/src/Microsoft.DotNet.Tools.Repl.Csi/project.json
index 9d0a3ba41..53fd86bbf 100644
--- a/src/Microsoft.DotNet.Tools.Repl.Csi/project.json
+++ b/src/Microsoft.DotNet.Tools.Repl.Csi/project.json
@@ -7,7 +7,7 @@
     "dependencies": {
         "NETStandard.Library": "1.0.0-rc2-23616",
         
-        "Microsoft.Net.CSharp.Interactive.netcore": "1.2.0-beta-20151106-02",
+        "Microsoft.Net.CSharp.Interactive.netcore": "1.2.0-beta1-20151228-02",
 
         "Microsoft.DotNet.Cli.Utils": {
             "type": "build",
diff --git a/src/Microsoft.DotNet.Tools.Run/project.json b/src/Microsoft.DotNet.Tools.Run/project.json
index 3e306f69c..63671ebd0 100644
--- a/src/Microsoft.DotNet.Tools.Run/project.json
+++ b/src/Microsoft.DotNet.Tools.Run/project.json
@@ -7,7 +7,7 @@
     "dependencies": {
         "NETStandard.Library": "1.0.0-rc2-23616",
         
-        "Microsoft.Net.Compilers.netcore": "1.2.0-beta-20151224-03",
+        "Microsoft.Net.Compilers.netcore": "1.2.0-beta1-20151228-02",
         "System.CommandLine" : "0.1.0-d111815-3",
 
         "Microsoft.DotNet.ProjectModel": "1.0.0-*",