diff --git a/.nvmrc b/.nvmrc
index 3c032078..2bd5a0a9 100644
--- a/.nvmrc
+++ b/.nvmrc
@@ -1 +1 @@
-18
+22
diff --git a/package-lock.json b/package-lock.json
index a6cd3a5a..13fc0219 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -162,6 +162,9 @@
         "webpack-dev-server": "5.0.4",
         "webpack-node-externals": "^3.0.0",
         "worker-loader": "^3.0.8"
+      },
+      "engines": {
+        "node": ">=22 <23"
       }
     },
     "node_modules/@asamuzakjp/css-color": {
diff --git a/package.json b/package.json
index b3d695ea..df969d1a 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
   "browserslist": [
     "Chrome >= 50",
     "Firefox >= 38",
-    "node >= 16"
+    "node >= 22"
   ],
   "devDependencies": {
     "@babel/core": "^7.29.0",
@@ -209,5 +209,8 @@
     "tag": "git tag -s \"v$(npm pkg get version | xargs)\" -m \"$(npm pkg get version | xargs)\" && echo \"Created v$(npm pkg get version | xargs), now check and push the tag\"",
     "getheapsize": "node -e 'console.log(`node heap limit = ${require(\"v8\").getHeapStatistics().heap_size_limit / (1024 * 1024)} Mb`)'",
     "setheapsize": "export NODE_OPTIONS=--max_old_space_size=2048"
+  },
+  "engines": {
+    "node": ">=22 <23"
   }
 }
diff --git a/src/core/ChefWorker.js b/src/core/ChefWorker.js
index a43993f9..3f56d855 100644
--- a/src/core/ChefWorker.js
+++ b/src/core/ChefWorker.js
@@ -7,7 +7,7 @@
  */
 
 import Chef from "./Chef.mjs";
-import OperationConfig from "./config/OperationConfig.json" assert {type: "json"};
+import OperationConfig from "./config/OperationConfig.json" with {type: "json"};
 import OpModules from "./config/modules/OpModules.mjs";
 import loglevelMessagePrefix from "loglevel-message-prefix";
 
diff --git a/src/core/Recipe.mjs b/src/core/Recipe.mjs
index 7824d1e8..e3b9903c 100755
--- a/src/core/Recipe.mjs
+++ b/src/core/Recipe.mjs
@@ -4,7 +4,7 @@
  * @license Apache-2.0
  */
 
-import OperationConfig from "./config/OperationConfig.json" assert {type: "json"};
+import OperationConfig from "./config/OperationConfig.json" with {type: "json"};
 import OperationError from "./errors/OperationError.mjs";
 import Operation from "./Operation.mjs";
 import DishError from "./errors/DishError.mjs";
diff --git a/src/core/lib/Magic.mjs b/src/core/lib/Magic.mjs
index 14111ec7..d1a0f2d0 100644
--- a/src/core/lib/Magic.mjs
+++ b/src/core/lib/Magic.mjs
@@ -1,4 +1,4 @@
-import OperationConfig from "../config/OperationConfig.json" assert {type: "json"};
+import OperationConfig from "../config/OperationConfig.json" with {type: "json"};
 import Utils, { isWorkerEnvironment } from "../Utils.mjs";
 import Recipe from "../Recipe.mjs";
 import Dish from "../Dish.mjs";
diff --git a/src/node/api.mjs b/src/node/api.mjs
index 88b3f834..b704a2bb 100644
--- a/src/node/api.mjs
+++ b/src/node/api.mjs
@@ -10,7 +10,7 @@
 
 import NodeDish from "./NodeDish.mjs";
 import NodeRecipe from "./NodeRecipe.mjs";
-import OperationConfig from "../core/config/OperationConfig.json" assert {type: "json"};
+import OperationConfig from "../core/config/OperationConfig.json" with {type: "json"};
 import { sanitise, removeSubheadingsFromArray, sentenceToCamelCase } from "./apiUtils.mjs";
 import ExcludedOperationError from "../core/errors/ExcludedOperationError.mjs";
 
diff --git a/src/web/index.js b/src/web/index.js
index 90142b34..6e712d06 100755
--- a/src/web/index.js
+++ b/src/web/index.js
@@ -17,8 +17,8 @@ import * as CanvasComponents from "../core/lib/CanvasComponents.mjs";
 
 // CyberChef
 import App from "./App.mjs";
-import Categories from "../core/config/Categories.json" assert {type: "json"};
-import OperationConfig from "../core/config/OperationConfig.json" assert {type: "json"};
+import Categories from "../core/config/Categories.json" with {type: "json"};
+import OperationConfig from "../core/config/OperationConfig.json" with {type: "json"};
 
 
 /**