diff --git a/package-lock.json b/package-lock.json
index e65d505b..01fcaefb 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11034,12 +11034,13 @@
       }
     },
     "node_modules/svelte-jester": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/svelte-jester/-/svelte-jester-3.0.0.tgz",
-      "integrity": "sha512-V279cL906++hn00hkL1xAr/y5OjjxPYWic1g0yTJFmqdbdWKthdcuP3XBvmmwP9AzFBT51DlPgXz56HItle1Ug==",
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/svelte-jester/-/svelte-jester-5.0.0.tgz",
+      "integrity": "sha512-12UnqprvUClFZHmx8O9exOK5ncHdESMIVG7FM9wRCEBzHbtigsklwKB+Q3AyKPsCrrOS920f9ZbYFk4PO0sEnQ==",
       "dev": true,
+      "license": "MIT",
       "engines": {
-        "node": ">=16",
+        "node": ">=18",
         "pnpm": "^8.0.0"
       },
       "peerDependencies": {
@@ -12590,7 +12591,7 @@
         "jest": "^29.7.0",
         "jest-environment-jsdom": "^29.7.0",
         "svelte": "^4.2.19",
-        "svelte-jester": "^3.0.0",
+        "svelte-jester": "^5.0.0",
         "svelte-preprocess": "^6.0.2",
         "ts-jest": "^29.1.2",
         "tsup": "^8.0.2",
diff --git a/packages/fizz-svelte/package.json b/packages/fizz-svelte/package.json
index aebdf608..f5c14117 100644
--- a/packages/fizz-svelte/package.json
+++ b/packages/fizz-svelte/package.json
@@ -39,7 +39,7 @@
     "jest": "^29.7.0",
     "jest-environment-jsdom": "^29.7.0",
     "svelte": "^4.2.19",
-    "svelte-jester": "^3.0.0",
+    "svelte-jester": "^5.0.0",
     "svelte-preprocess": "^6.0.2",
     "ts-jest": "^29.1.2",
     "typescript": "^5.5.4",