diff --git a/2-resources/_External-learning-resources/00-Javascript/Node.js_Design_Patterns/Chapter11/01_basic_chat/package.json b/2-resources/_External-learning-resources/00-Javascript/Node.js_Design_Patterns/Chapter11/01_basic_chat/package.json
index 405ac9f7c..b0eab1ed7 100644
--- a/2-resources/_External-learning-resources/00-Javascript/Node.js_Design_Patterns/Chapter11/01_basic_chat/package.json
+++ b/2-resources/_External-learning-resources/00-Javascript/Node.js_Design_Patterns/Chapter11/01_basic_chat/package.json
@@ -1,6 +1,6 @@
 {
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     "ecstatic": "^1.4.0",
-    "ws": "^1.0.1"
+    "ws": "^7.4.6"
   }
 }
diff --git a/2-resources/_External-learning-resources/00-Javascript/Node.js_Design_Patterns/Chapter11/02_chat_redis/package.json b/2-resources/_External-learning-resources/00-Javascript/Node.js_Design_Patterns/Chapter11/02_chat_redis/package.json
index fe4e9d9ad..5540d5fd4 100644
--- a/2-resources/_External-learning-resources/00-Javascript/Node.js_Design_Patterns/Chapter11/02_chat_redis/package.json
+++ b/2-resources/_External-learning-resources/00-Javascript/Node.js_Design_Patterns/Chapter11/02_chat_redis/package.json
@@ -2,6 +2,6 @@
   "dependencies": {
     "ecstatic": "^1.4.0",
     "redis": "^2.6.0-1",
-    "ws": "^1.0.1"
+    "ws": "^7.4.6"
   }
 }
diff --git a/2-resources/_External-learning-resources/00-Javascript/Node.js_Design_Patterns/Chapter11/03_chat_zmq/package.json b/2-resources/_External-learning-resources/00-Javascript/Node.js_Design_Patterns/Chapter11/03_chat_zmq/package.json
index def2071e2..494688c86 100644
--- a/2-resources/_External-learning-resources/00-Javascript/Node.js_Design_Patterns/Chapter11/03_chat_zmq/package.json
+++ b/2-resources/_External-learning-resources/00-Javascript/Node.js_Design_Patterns/Chapter11/03_chat_zmq/package.json
@@ -2,7 +2,7 @@
   "dependencies": {
     "ecstatic": "^1.4.0",
     "minimist": "^1.2.0",
-    "ws": "^1.0.1",
+    "ws": "^7.4.6",
     "zmq": "^2.14.0"
   }
 }
diff --git a/2-resources/_External-learning-resources/00-Javascript/Node.js_Design_Patterns/Chapter11/04_durable_sub/package.json b/2-resources/_External-learning-resources/00-Javascript/Node.js_Design_Patterns/Chapter11/04_durable_sub/package.json
index 24f1194b7..1d8588728 100644
--- a/2-resources/_External-learning-resources/00-Javascript/Node.js_Design_Patterns/Chapter11/04_durable_sub/package.json
+++ b/2-resources/_External-learning-resources/00-Javascript/Node.js_Design_Patterns/Chapter11/04_durable_sub/package.json
@@ -6,6 +6,6 @@
     "level": "^1.4.0",
     "monotonic-timestamp": "0.0.9",
     "request": "^2.70.0",
-    "ws": "^1.0.1"
+    "ws": "^7.4.6"
   }
 }