diff --git a/CHANGELOG.md b/CHANGELOG.md
index f980772f..a1fd3fdf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
   - Remove compatibility code that provided the singletons (`control` and `model`) in JavaScript scripts, they can now be accessed directly always.
   - Use provided singletons (`control` and `model`) in Python scripts.
   - Use non-deprecated `HttpSender` constructor.
+  - extender/Simple Reverse Proxy.js - replace usage of deprecated core classes.
 - Remove statements that return the message in HTTP Sender scripts, the message passed as parameter is used/sent always.
 
 ## [16] - 2023-03-29
diff --git a/extender/Simple Reverse Proxy.js b/extender/Simple Reverse Proxy.js
index 5ab2298f..b6d1e7fe 100644
--- a/extender/Simple Reverse Proxy.js	
+++ b/extender/Simple Reverse Proxy.js	
@@ -8,48 +8,31 @@ var remotePort = 80
 var proxyAddress = "127.0.0.1"
 var proxyPort = 8081
 
-var ProxyServer = Java.type("org.parosproxy.paros.core.proxy.ProxyServer")
-var ProxyListener = Java.type("org.parosproxy.paros.core.proxy.ProxyListener")
-var ZapXmlConfiguration = Java.type("org.zaproxy.zap.utils.ZapXmlConfiguration")
+var HttpSender = Java.type("org.parosproxy.paros.network.HttpSender")
 var URI = Java.type("org.apache.commons.httpclient.URI")
 
-var extLoader = control.getExtensionLoader()
+var extensionNetwork = control.getExtensionLoader().getExtension("ExtensionNetwork")
 var proxy
 
+function messageHandler(ctx, msg) {
+    if (!ctx.isFromClient()) {
+        return
+    }
+
+    var requestUri = msg.getRequestHeader().getURI()
+    requestUri = new URI(requestUri.getScheme(),
+                         requestUri.getUserinfo(),
+                         remoteAddress,
+                         remotePort,
+                         requestUri.getPath())
+    msg.getRequestHeader().setURI(requestUri)
+}
+
 function install(helper) {
-    proxy = new ProxyServer("Proxy");
-    proxy.getProxyParam().load(new ZapXmlConfiguration());
-    var proxyParam = proxy.getProxyParam();
-    proxyParam.setAlwaysDecodeGzip("false");
-    proxyParam.setBehindNat(false);
-    proxyParam.setRemoveUnsupportedEncodings(true);
-
-    proxy.setConnectionParam(model.getOptionsParam().getConnectionParam());
-    proxy.setEnableApi(false);
-
-    extLoader.addProxyServer(proxy)
-
-    proxy.addProxyListener(new ProxyListener() {
-
-        onHttpRequestSend: function(msg) {
-            var requestUri = msg.getRequestHeader().getURI()
-            requestUri = new URI(requestUri.getScheme(),
-                                 requestUri.getUserinfo(),
-                                 remoteAddress,
-                                 remotePort,
-                                 requestUri.getPath())
-            msg.getRequestHeader().setURI(requestUri)
-            return true
-        },
-
-        onHttpResponseReceive: function(msg) { return true },
-        getArrangeableListenerOrder: function() { return 0 }
-    })
-
-    proxy.startServer(proxyAddress, proxyPort, false);
+    proxy = extensionNetwork.createHttpProxy(HttpSender.PROXY_INITIATOR, messageHandler)
+    proxy.start(proxyAddress, proxyPort)
 }
 
 function uninstall(helper) {
-    proxy.stopServer()
-    extLoader.removeProxyServer(proxy)
+    proxy.stop()
 }