diff --git a/prism/src/prism/Prism.java b/prism/src/prism/Prism.java
index ea175f84..a97f0e6d 100644
--- a/prism/src/prism/Prism.java
+++ b/prism/src/prism/Prism.java
@@ -50,10 +50,10 @@ import prism.Model;
 public class Prism implements PrismSettingsListener
 {
 	// prism version
-	private static String version = "4.0.3";
+	private static String version = "4.1";
 	// prism version suffix
 	//private static String versionSuffix = "";
-	private static String versionSuffix = ".dev"; //".rXXXX";
+	private static String versionSuffix = ".beta1"; //".rXXXX";
 
 	//------------------------------------------------------------------------------
 	// Constants