diff --git a/build.cake b/build.cake
index 108b8c00..b3932827 100644
--- a/build.cake
+++ b/build.cake
@@ -15,7 +15,7 @@ var configuration = Argument("configuration", "Release");
 
 var version = "5.0.0";
 
-var modifier = "-beta.4";
+var modifier = "-beta.5";
 
 var dbgSuffix = configuration.ToLower() == "debug" ? "-dbg" : "";
 var packageVersion = version + modifier + dbgSuffix;