diff --git a/examples/ws-private-v5.ts b/examples/ws-private-v5.ts
index f7d91e6..e40b720 100644
--- a/examples/ws-private-v5.ts
+++ b/examples/ws-private-v5.ts
@@ -10,8 +10,8 @@ const logger = {
   // trace: (...params) => console.log('trace', ...params),
 };
 
-const key = process.env.API_KEY;
-const secret = process.env.API_SECRET;
+const key = process.env.API_KEY_COM;
+const secret = process.env.API_SECRET_COM;
 
 /**
  * Prepare an instance of the WebSocket client. This client handles all aspects of connectivity for you:
@@ -62,9 +62,12 @@ wsClient.on('reconnected', (data) => {
  */
 
 wsClient.subscribeV5('position', 'linear');
-wsClient.subscribeV5('execution', 'linear');
 wsClient.subscribeV5(['order', 'wallet', 'greeks'], 'linear');
 
+wsClient.subscribeV5('execution', 'linear');
+// wsClient.subscribeV5('execution.fast', 'linear');
+// wsClient.subscribeV5('execution.fast.linear', 'linear');
+
 /**
  * The following has the same effect as above, since there's only one private endpoint for V5 account topics:
  */
diff --git a/package-lock.json b/package-lock.json
index 7bcfd58..a951b69 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "bybit-api",
-  "version": "4.1.6",
+  "version": "4.1.7",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "bybit-api",
-      "version": "4.1.6",
+      "version": "4.1.7",
       "license": "MIT",
       "dependencies": {
         "axios": "^1.7.9",
diff --git a/package.json b/package.json
index 0e7d3cf..0663b57 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "bybit-api",
-  "version": "4.1.6",
+  "version": "4.1.7",
   "description": "Complete & robust Node.js SDK for Bybit's REST APIs and WebSockets, with TypeScript & strong end to end tests.",
   "main": "lib/index.js",
   "types": "lib/index.d.ts",
diff --git a/src/util/websockets/websocket-util.ts b/src/util/websockets/websocket-util.ts
index c4a4ee0..656a727 100644
--- a/src/util/websockets/websocket-util.ts
+++ b/src/util/websockets/websocket-util.ts
@@ -78,6 +78,11 @@ const PRIVATE_TOPICS = [
   'order',
   'wallet',
   'greeks',
+  // v5 fast execution topics are private
+  'execution.fast',
+  'execution.fast.linear',
+  'execution.fast.inverse',
+  'execution.fast.spot',
 ];
 
 /**