diff --git a/functions/newsletter/package-lock.json b/functions/newsletter/package-lock.json
index 7964b9d4..0859dfff 100644
--- a/functions/newsletter/package-lock.json
+++ b/functions/newsletter/package-lock.json
@@ -60,9 +60,9 @@
       }
     },
     "typescript": {
-      "version": "5.1.3",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.1.3.tgz",
-      "integrity": "sha512-XH627E9vkeqhlZFQuL+UsyAXEnibT0kWR2FWONlr4sTjvxyJYnyefgrkyECLzM5NenmKzRAy2rR/OlYLA1HkZw=="
+      "version": "5.3.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.3.3.tgz",
+      "integrity": "sha512-pXWcraxM0uxAS+tN0AG/BF2TyqmHO014Z070UsJ+pFvYuRSq8KH8DmWpnbXe0pEPDHXZV3FcAbJkijJ5oNEnWw=="
     },
     "web-streams-polyfill": {
       "version": "3.2.1",
diff --git a/functions/newsletter/package.json b/functions/newsletter/package.json
index 299e8143..f686b08e 100644
--- a/functions/newsletter/package.json
+++ b/functions/newsletter/package.json
@@ -17,6 +17,6 @@
     "@netlify/functions": "^1.6.0",
     "@types/node": "^20.7.0",
     "node-fetch": "^3.3.0",
-    "typescript": "^5.1.3"
+    "typescript": "^5.3.3"
   }
 }
\ No newline at end of file