diff --git a/babel.config.js b/babel.config.js
index deab9108..92e46ff0 100644
--- a/babel.config.js
+++ b/babel.config.js
@@ -11,6 +11,7 @@ module.exports = function(api) {
         ],
         "plugins": [
             "dynamic-import-node",
+            "@babel/plugin-syntax-import-attributes",
             "@babel/plugin-syntax-import-assertions",
             [
                 "babel-plugin-transform-builtin-extend", {
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 3ce40aa4..31c02ee2 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"};
 
 
 /**
diff --git a/src/web/static/sitemap.mjs b/src/web/static/sitemap.mjs
index b96047fc..14ee8d73 100644
--- a/src/web/static/sitemap.mjs
+++ b/src/web/static/sitemap.mjs
@@ -1,5 +1,5 @@
 import sm from "sitemap";
-import OperationConfig from "../../core/config/OperationConfig.json" assert {type: "json"};
+import OperationConfig from "../../core/config/OperationConfig.json" with {type: "json"};
 
 
 /**
diff --git a/tests/node/tests/Categories.mjs b/tests/node/tests/Categories.mjs
index e6f8bd72..f37b43ec 100644
--- a/tests/node/tests/Categories.mjs
+++ b/tests/node/tests/Categories.mjs
@@ -1,6 +1,6 @@
 import TestRegister from "../../lib/TestRegister.mjs";
-import Categories from "../../../src/core/config/Categories.json" assert {type: "json"};
-import OperationConfig from "../../../src/core/config/OperationConfig.json" assert {type: "json"};
+import Categories from "../../../src/core/config/Categories.json" with {type: "json"};
+import OperationConfig from "../../../src/core/config/OperationConfig.json" with {type: "json"};
 import it from "../assertionHandler.mjs";
 import assert from "assert";