diff --git a/prism/CHANGELOG.txt b/prism/CHANGELOG.txt
index 9c22cb57..b59cbe28 100644
--- a/prism/CHANGELOG.txt
+++ b/prism/CHANGELOG.txt
@@ -15,6 +15,12 @@ Recent changes: (up to svn rev 10687)
 * prism-auto: new options (--show-warnings, --nailgun, --ngprism), multiple -x switches
 * Bug fixes
 
+-----------------------------------------------------------------------------
+Version 4.3.1 (first released 26/5/2015)
+-----------------------------------------------------------------------------
+
+* Bug fix for launch scripts on OS X (especially El Capitan)
+
 -----------------------------------------------------------------------------
 Version 4.3 (first released 14/7/2015)
 -----------------------------------------------------------------------------
diff --git a/prism/src/prism/Version.java b/prism/src/prism/Version.java
index a8837289..80abd47f 100644
--- a/prism/src/prism/Version.java
+++ b/prism/src/prism/Version.java
@@ -3,7 +3,7 @@ package prism;
 public class Version
 {
 	/** PRISM version (e.g. "4.0.3"). Just a single string (will be extracted by scripts). */
-	public static String versionString = "4.3";
+	public static String versionString = "4.3.1";
 	/** Optional PRISM version suffix (e.g. "dev", "beta"). Just a single string (will be extracted by scripts). */
 	public static String versionSuffixString = "dev";
 }