diff --git a/case-studies/Battleships/package-lock.json b/case-studies/Battleships/package-lock.json
index 433199d..2d0fda0 100644
--- a/case-studies/Battleships/package-lock.json
+++ b/case-studies/Battleships/package-lock.json
@@ -954,9 +954,9 @@
       }
     },
     "ws": {
-      "version": "7.4.1",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-7.4.1.tgz",
-      "integrity": "sha512-pTsP8UAfhy3sk1lSk/O/s4tjD0CRwvMnzvwr4OKGX7ZvqZtUyx4KIJB5JWbkykPoc55tixMGgTNoh3k4FkNGFQ=="
+      "version": "7.4.6",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-7.4.6.tgz",
+      "integrity": "sha512-YmhHDO4MzaDLB+M9ym/mDA5z0naX8j7SIlT8f8z+I0VtzsRbekxEutHSme7NPS2qE8StCYQNUnfWdXta/Yu85A=="
     },
     "y18n": {
       "version": "4.0.1",
diff --git a/case-studies/Battleships/package.json b/case-studies/Battleships/package.json
index ebb55c3..69a1aee 100644
--- a/case-studies/Battleships/package.json
+++ b/case-studies/Battleships/package.json
@@ -14,7 +14,7 @@
   "dependencies": {
     "express": "^4.17.1",
     "uuid": "^8.3.0",
-    "ws": "^7.3.1"
+    "ws": "^7.4.6"
   },
   "devDependencies": {
     "concurrently": "^5.3.0",