diff --git a/JythonCli.java b/JythonCli.java
index a9210dc..74b0852 100755
--- a/JythonCli.java
+++ b/JythonCli.java
@@ -77,6 +77,12 @@ static String getJvmMajorVersion() {
      * @throws IOException
      */
     void initEnvironment(String[] args) throws IOException {
+        // Set Jython version to jbang.app.version property if set, otherwise use default
+        String version = System.getProperty("jbang.app.version");
+        if (version != null) {
+            jythonVersion = version;
+        }
+
         // Check that that Java 8 (1.8) or higher is used
         if (Integer.parseInt(javaVersion) < 8) {
             System.err.println("jython-cli: error, Java 8 or higher is required");
diff --git a/jbang-catalog.json b/jbang-catalog.json
index 4c004f3..97ed70b 100644
--- a/jbang-catalog.json
+++ b/jbang-catalog.json
@@ -2,7 +2,17 @@
   "aliases": {
     "jython-cli": {
       "script-ref": "JythonCli.java",
-      "description": "Run Jython 2.7"
+      "description": "Run Jython 2.7",
+      "properties": {
+          "jbang.app.version": "2.7.4"
+      }
+    },
+    "jython-cli-next": {
+      "script-ref": "JythonCli.java",
+      "description": "Run Jython 2.7.5b1",
+      "properties": {
+        "jbang.app.version": "2.7.5b1"
+      }
     }
   }
 }