diff --git a/.circleci/config.yml b/.circleci/config.yml
index 1c228e2a284..f3cda9fc147 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -156,7 +156,7 @@ workflows:
 
 defaults: &defaults
   docker:
-    - image: cimg/node:14.16-browsers
+    - image: cimg/node:18.12-browsers
   working_directory: ~/mapbox-gl-js
 
 jobs:
diff --git a/build/node-loader.js b/build/node-loader.js
index e68d0a214b7..ead997e23b3 100644
--- a/build/node-loader.js
+++ b/build/node-loader.js
@@ -4,36 +4,45 @@ import {dataToEsm} from '@rollup/pluginutils';
 const glslRe = /\.glsl$/;
 const jsonRe = /\.json$/;
 
-export function resolve(specifier, context, defaultResolve) {
+export async function resolve(specifier, context, nextResolve) {
     if (glslRe.test(specifier)) {
         const url = new URL(specifier, context.parentURL).href;
-        return {url};
+        return {url, shortCircuit: true};
     }
-    return defaultResolve(specifier, context, defaultResolve);
-}
 
-export function getFormat(url, context, defaultGetFormat) {
-    if (glslRe.test(url) || jsonRe.test(url)) {
-        return {format: 'module'};
-    }
-    return defaultGetFormat(url, context, defaultGetFormat);
+    return nextResolve(specifier);
 }
 
-export function transformSource(source, context, defaultTransformSource) {
-    if (source.indexOf('@flow') >= 0) {
-        source = flowRemoveTypes(source.toString()).toString();
-        return {source};
+export async function load(url, context, nextLoad) {
+    if (context.format === 'module') {
+        const {source: rawSource} = await nextLoad(url, context);
+        const source = rawSource.toString();
+        if (source.indexOf('@flow') >= 0) {
+            const transformedSource = flowRemoveTypes(source).toString();
+            return {format: 'module', source: transformedSource, shortCircuit: true};
+        }
     }
-    if (glslRe.test(context.url)) {
-        return {source: `export default \`${source}\``};
+
+    if (glslRe.test(url)) {
+        const {source: rawSource} = await nextLoad(url, {...context, format: 'module'});
+        const source = `export default \`${rawSource.toString()}\``;
+        return {format: 'module', source, shortCircuit: true};
     }
-    if (jsonRe.test(context.url)) {
-        source = dataToEsm(JSON.parse(source), {
+
+    if (jsonRe.test(url)) {
+        const {source: rawSource} = await nextLoad(url, {...context,
+            // Force import assertions as "assert { type: 'json' }"
+            importAssertions: {type: 'json'}
+        });
+
+        const source = dataToEsm(JSON.parse(rawSource.toString()), {
             preferConst: true,
             namedExports: true,
             indent: '    '
         });
-        return {source};
+
+        return {format: 'module', source, shortCircuit: true};
     }
-    return defaultTransformSource(source, context, defaultTransformSource);
+
+    return nextLoad(url);
 }