diff --git a/bin/release b/bin/release
index 354af6a..8480822 100755
--- a/bin/release
+++ b/bin/release
@@ -412,7 +412,7 @@ def add_libs(rel_name, galette_archive):
         if os.path.exists(target):
             os.remove(target)
 
-    for todrop in ['.github', 'bin', 'node_modules', 'tests']:
+    for todrop in ['.github', 'bin', 'build', 'node_modules', 'tests']:
         target = os.path.join(npm_dir, todrop)
         if os.path.exists(target):
             shutil.rmtree(target)
diff --git a/build/leaflet-global.js b/build/leaflet-global.js
new file mode 100644
index 0000000..4350f2f
--- /dev/null
+++ b/build/leaflet-global.js
@@ -0,0 +1,10 @@
+/**
+ * This file is part of Galette Maps plugin (https://galette.eu).
+ * SPDX-FileCopyrightText: Copyright © 2012-2026 The Galette Team
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+// Leaflet is already loaded by maps-main.bundle.min.js; hand the bundler that
+// instance instead of a second copy, or the plugin would extend a Leaflet the
+// page never sees.
+module.exports = window.L;
diff --git a/build/maps-gl.js b/build/maps-gl.js
new file mode 100644
index 0000000..504b395
--- /dev/null
+++ b/build/maps-gl.js
@@ -0,0 +1,19 @@
+/**
+ * This file is part of Galette Maps plugin (https://galette.eu).
+ * SPDX-FileCopyrightText: Copyright © 2012-2026 The Galette Team
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+import * as maplibregl from 'maplibre-gl';
+// Registers L.maplibreGL on the Leaflet the page already loaded (see the
+// `leaflet` alias in gulpfile.js).
+import '@maplibre/maplibre-gl-leaflet';
+
+// The worker is shipped next to this bundle; derive its URL from our own
+// <script> so no template has to know where plugin resources are served from.
+const bundle_url = document.currentScript && document.currentScript.src;
+if (bundle_url) {
+  maplibregl.setWorkerUrl(new URL('maps-gl.worker.min.js', bundle_url).href);
+}
+
+export * from 'maplibre-gl';
diff --git a/gulpfile.js b/gulpfile.js
index 5b11870..48b6e9d 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -13,6 +13,7 @@ const uglify = require('gulp-uglify');
 const merge = require('ordered-read-streams');
 const replace = require('gulp-replace');
 const cleancss = require('gulp-clean-css');
+const esbuild = require('esbuild');
 
 const plugin = {
   'public': './webroot'
@@ -41,14 +42,18 @@ const gl_styles = [
   './node_modules/maplibre-gl/dist/maplibre-gl.css'
 ];
 
-// maplibre-gl is pinned to 5.x on purpose: 6.x dropped the UMD build and ships
-// ES modules only, which cannot be concatenated into a classic script. The 5.x
-// dist is already minified and uses syntax uglify-js cannot parse, so this
-// bundle is concatenated as is, never piped through uglify.
-const gl_scripts = [
-  './node_modules/maplibre-gl/dist/maplibre-gl.js',
-  './node_modules/@maplibre/maplibre-gl-leaflet/leaflet-maplibre-gl.js'
-];
+// maplibre-gl ships ES modules only since 6.x, so its bundle cannot be built by
+// concatenation like the others: esbuild rolls it up, along with the Leaflet
+// binding, into a classic script still exposing the `maplibregl` global.
+const gl_entry = './build/maps-gl.js';
+// Leaflet comes from maps-main.bundle.min.js, so the bundle must reuse the one
+// on the page instead of embedding a second copy.
+const gl_aliases = {
+  'leaflet': './build/leaflet-global.js'
+};
+// maplibre-gl runs its tile parsing in a worker it fetches at runtime; it has to
+// be a file of its own, next to the bundle.
+const gl_worker = './node_modules/maplibre-gl/dist/maplibre-gl-worker.mjs';
 
 const main_assets = [
   {
@@ -115,11 +120,28 @@ function scripts() {
     .pipe(uglify())
     .pipe(gulp.dest(plugin.public));
 
-    gl = gulp.src(gl_scripts)
-    .pipe(concat('maps-gl.bundle.min.js'))
-    .pipe(gulp.dest(plugin.public));
+  return merge(main, locate);
+};
 
-  return merge(main, locate, gl);
+function gl_scripts() {
+  return Promise.all([
+    esbuild.build({
+      entryPoints: [gl_entry],
+      outfile: plugin.public + '/maps-gl.bundle.min.js',
+      bundle: true,
+      minify: true,
+      format: 'iife',
+      globalName: 'maplibregl',
+      alias: gl_aliases
+    }),
+    esbuild.build({
+      entryPoints: [gl_worker],
+      outfile: plugin.public + '/maps-gl.worker.min.js',
+      bundle: true,
+      minify: true,
+      format: 'esm'
+    })
+  ]);
 };
 
 function assets() {
@@ -136,7 +158,8 @@ exports.clean = clean;
 
 exports.styles = styles;
 exports.scripts = scripts;
+exports.gl_scripts = gl_scripts;
 exports.assets = assets;
 
-exports.build = series(styles, scripts, assets);
+exports.build = series(styles, scripts, gl_scripts, assets);
 exports.default = exports.build;
diff --git a/package-lock.json b/package-lock.json
index 4fc67a9..db9b2c4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -17,10 +17,11 @@
         "leaflet.fullscreen": "^5.3.3",
         "leaflet.locatecontrol": "^0.90.1",
         "leaflet.markercluster": "^1.5.3",
-        "maplibre-gl": "^5.24.0"
+        "maplibre-gl": "^6.7.0"
       },
       "devDependencies": {
         "del": "^6.1.1",
+        "esbuild": "^0.28.2",
         "gulp": "^5.0.1",
         "gulp-clean-css": "^4.3.0",
         "gulp-concat": "^2.6.1",
@@ -29,6 +30,448 @@
         "ordered-read-streams": "^2.0.0"
       }
     },
+    "node_modules/@esbuild/aix-ppc64": {
+      "version": "0.28.2",
+      "resolved": "https://registry.npmjs.org/@esbuild/aix-ppc64/-/aix-ppc64-0.28.2.tgz",
+      "integrity": "sha512-XExcO+dvLKvVtNTibSTBej1NCAbaGhWn9Ww1ZPx80qsahhPFe/8jgWP0IchNe0F3HwkU7n8ejhH8bjonqht8mQ==",
+      "cpu": [
+        "ppc64"
+      ],
+      "dev": true,
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "aix"
+      ],
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/@esbuild/android-arm": {
+      "version": "0.28.2",
+      "resolved": "https://registry.npmjs.org/@esbuild/android-arm/-/android-arm-0.28.2.tgz",
+      "integrity": "sha512-kXXoiPVVGQcnIYGOeaovwOURpniDBpSq4A03qkQ+BMQqtGG6HYap3xne9C1O1yo4TR3qxlCX5IqqmX6fFo2Lqg==",
+      "cpu": [
+        "arm"
+      ],
+      "dev": true,
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "android"
+      ],
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/@esbuild/android-arm64": {
+      "version": "0.28.2",
+      "resolved": "https://registry.npmjs.org/@esbuild/android-arm64/-/android-arm64-0.28.2.tgz",
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+      "integrity": "sha512-YmJbfTlvU7Sdn9BB+4PRES4oB6pxgS37MAONj+hBr/cpXS1aBPKXxNnDbu+QCWPj0o9dgyxeq79g6c5P8KeuYA==",
+      "cpu": [
+        "ia32"
+      ],
+      "dev": true,
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "win32"
+      ],
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/@esbuild/win32-x64": {
+      "version": "0.28.2",
+      "resolved": "https://registry.npmjs.org/@esbuild/win32-x64/-/win32-x64-0.28.2.tgz",
+      "integrity": "sha512-5ebpxr3nWMzrL/rnUI755Jkuee0bHL/Gq0WTF9lvcpv73wAp5eu8MfBUgWK9bhWvZjj7yX8etf/8tI8Ney695g==",
+      "cpu": [
+        "x64"
+      ],
+      "dev": true,
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "win32"
+      ],
+      "engines": {
+        "node": ">=18"
+      }
+    },
     "node_modules/@gulpjs/messages": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/@gulpjs/messages/-/messages-1.1.0.tgz",
@@ -74,41 +517,20 @@
       "license": "BSD-2-Clause"
     },
     "node_modules/@mapbox/unitbezier": {
-      "version": "0.0.1",
-      "resolved": "https://registry.npmjs.org/@mapbox/unitbezier/-/unitbezier-0.0.1.tgz",
-      "integrity": "sha512-nMkuDXFv60aBr9soUG5q+GvZYL+2KZHVvsqFCzqnkGEf46U2fvmytHaEVc1/YZbiLn8X+eR3QzX1+dwDO1lxlw==",
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/@mapbox/unitbezier/-/unitbezier-1.0.0.tgz",
+      "integrity": "sha512-fqd515fjBmANKGGsQ286E2Wvj/XvDFpGzwJxq4CI6jMQue6Oy04uCKp+JWKF00xRTmk6cEu1jPJ9p3xqH8YWqQ==",
       "license": "BSD-2-Clause"
     },
     "node_modules/@mapbox/vector-tile": {
-      "version": "2.0.5",
-      "resolved": "https://registry.npmjs.org/@mapbox/vector-tile/-/vector-tile-2.0.5.tgz",
-      "integrity": "sha512-pXj8m7KTsqZt+1jsE0xIpGvqTSbblfkuEJL/NJmNePMtEwxO8V3XMDo9WMSfDeqHvCtBI9Lmt4mGcGR10zecmw==",
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/@mapbox/vector-tile/-/vector-tile-3.0.0.tgz",
+      "integrity": "sha512-Qf10S1uIHMk20ri/IVBnpS+esUEkVaR5Hftmz88jTInrpmWgPGJfPe3LVjjlE77trLx8tH6qjTG7uWH9hIq/0Q==",
       "license": "BSD-3-Clause",
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         "@types/geojson": "^7946.0.16",
-        "pbf": "^4.0.2"
-      }
-    },
-    "node_modules/@mapbox/vector-tile/node_modules/pbf": {
-      "version": "4.0.2",
-      "resolved": "https://registry.npmjs.org/pbf/-/pbf-4.0.2.tgz",
-      "integrity": "sha512-J0ajxARhZfpUEebxYs1vhMGMuLSXtBe1e+fFPDrf2uA2hgo+UshKfNUWOz92HJNz6/NFEXseQPddnHkTreWRqg==",
-      "license": "BSD-3-Clause",
-      "dependencies": {
-        "resolve-protobuf-schema": "^2.1.0"
-      },
-      "bin": {
-        "pbf": "bin/pbf"
-      }
-    },
-    "node_modules/@mapbox/whoots-js": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/@mapbox/whoots-js/-/whoots-js-3.1.0.tgz",
-      "integrity": "sha512-Es6WcD0nO5l+2BOQS4uLfNPYQaNDfbot3X1XUoloz+x0mPDS3eeORZJl06HXjwBG1fOGwCRnzK88LMdxKRrd6Q==",
-      "license": "ISC",
-      "engines": {
-        "node": ">=6.0.0"
+        "pbf": "^5.0.0"
       }
     },
     "node_modules/@maplibre/geojson-vt": {
@@ -132,12 +554,12 @@
       }
     },
     "node_modules/@maplibre/maplibre-gl-style-spec": {
-      "version": "24.10.0",
-      "resolved": "https://registry.npmjs.org/@maplibre/maplibre-gl-style-spec/-/maplibre-gl-style-spec-24.10.0.tgz",
-      "integrity": "sha512-lichxSiagMEBBrqHF0trtMQH9RKh+9jUlIJl0qW0QHvt2H/tbvUWdE+ZzI2Jd0/pT7j/iavLonlPu7EQ/ixTOw==",
+      "version": "26.4.1",
+      "resolved": "https://registry.npmjs.org/@maplibre/maplibre-gl-style-spec/-/maplibre-gl-style-spec-26.4.1.tgz",
+      "integrity": "sha512-I/qcIKVFHFSg1Meu/eqHrkSTjIez0gCsSaK56TNPutM3TkE61aSq6F1cZ4Kg4KiNs3cpViLtubDjfyRcQCdEJQ==",
       "license": "ISC",
       "dependencies": {
-        "@mapbox/jsonlint-lines-primitives": "~2.0.2",
+        "@mapbox/jsonlint-lines-primitives": "^2.0.3",
         "@mapbox/unitbezier": "^1.0.0",
         "json-stringify-pretty-compact": "^4.0.0",
         "minimist": "^1.2.8",
@@ -150,12 +572,6 @@
         "gl-style-validate": "dist/gl-style-validate.mjs"
       }
     },
-    "node_modules/@maplibre/maplibre-gl-style-spec/node_modules/@mapbox/unitbezier": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/@mapbox/unitbezier/-/unitbezier-1.0.0.tgz",
-      "integrity": "sha512-fqd515fjBmANKGGsQ286E2Wvj/XvDFpGzwJxq4CI6jMQue6Oy04uCKp+JWKF00xRTmk6cEu1jPJ9p3xqH8YWqQ==",
-      "license": "BSD-2-Clause"
-    },
     "node_modules/@maplibre/mlt": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/@maplibre/mlt/-/mlt-1.2.0.tgz",
@@ -862,6 +1278,48 @@
         "once": "^1.4.0"
       }
     },
+    "node_modules/esbuild": {
+      "version": "0.28.2",
+      "resolved": "https://registry.npmjs.org/esbuild/-/esbuild-0.28.2.tgz",
+      "integrity": "sha512-HKVLS8dvII+xoKW9kmqxbRKrnWEXfJJr/FZhhJmiqIB0e053QNYFqOBouTMO/k5sID4MvCiUCvv8b9M4h32wIA==",
+      "dev": true,
+      "hasInstallScript": true,
+      "license": "MIT",
+      "bin": {
+        "esbuild": "bin/esbuild"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "optionalDependencies": {
+        "@esbuild/aix-ppc64": "0.28.2",
+        "@esbuild/android-arm": "0.28.2",
+        "@esbuild/android-arm64": "0.28.2",
+        "@esbuild/android-x64": "0.28.2",
+        "@esbuild/darwin-arm64": "0.28.2",
+        "@esbuild/darwin-x64": "0.28.2",
+        "@esbuild/freebsd-arm64": "0.28.2",
+        "@esbuild/freebsd-x64": "0.28.2",
+        "@esbuild/linux-arm": "0.28.2",
+        "@esbuild/linux-arm64": "0.28.2",
+        "@esbuild/linux-ia32": "0.28.2",
+        "@esbuild/linux-loong64": "0.28.2",
+        "@esbuild/linux-mips64el": "0.28.2",
+        "@esbuild/linux-ppc64": "0.28.2",
+        "@esbuild/linux-riscv64": "0.28.2",
+        "@esbuild/linux-s390x": "0.28.2",
+        "@esbuild/linux-x64": "0.28.2",
+        "@esbuild/netbsd-arm64": "0.28.2",
+        "@esbuild/netbsd-x64": "0.28.2",
+        "@esbuild/openbsd-arm64": "0.28.2",
+        "@esbuild/openbsd-x64": "0.28.2",
+        "@esbuild/openharmony-arm64": "0.28.2",
+        "@esbuild/sunos-x64": "0.28.2",
+        "@esbuild/win32-arm64": "0.28.2",
+        "@esbuild/win32-ia32": "0.28.2",
+        "@esbuild/win32-x64": "0.28.2"
+      }
+    },
     "node_modules/escalade": {
       "version": "3.2.0",
       "resolved": "https://registry.npmjs.org/escalade/-/escalade-3.2.0.tgz",
@@ -1979,27 +2437,25 @@
       }
     },
     "node_modules/maplibre-gl": {
-      "version": "5.24.0",
-      "resolved": "https://registry.npmjs.org/maplibre-gl/-/maplibre-gl-5.24.0.tgz",
-      "integrity": "sha512-ALyFxgtd5R+65UqZ/++lOqwWcC0SNho9c27fYSyLmG7AfnAul2o46F05aDJGPbFU57wos9dgcIySHs0Xe6ia3A==",
+      "version": "6.7.0",
+      "resolved": "https://registry.npmjs.org/maplibre-gl/-/maplibre-gl-6.7.0.tgz",
+      "integrity": "sha512-Y1Q1+UP9WXou0DUrnaFdDsoMqiMCWy6aS968IBUaQ2eZi6H1/kPCfpfZOWXFJZbeKMkX9Wo6OFzY/k48qqPf3Q==",
       "license": "BSD-3-Clause",
       "dependencies": {
-        "@mapbox/jsonlint-lines-primitives": "^2.0.2",
         "@mapbox/point-geometry": "^1.1.0",
-        "@mapbox/tiny-sdf": "^2.1.0",
-        "@mapbox/unitbezier": "^0.0.1",
-        "@mapbox/vector-tile": "^2.0.4",
-        "@mapbox/whoots-js": "^3.1.0",
-        "@maplibre/geojson-vt": "^6.1.0",
-        "@maplibre/maplibre-gl-style-spec": "^24.8.1",
-        "@maplibre/mlt": "^1.1.8",
-        "@maplibre/vt-pbf": "^4.3.0",
+        "@mapbox/tiny-sdf": "^2.2.0",
+        "@mapbox/unitbezier": "^1.0.0",
+        "@mapbox/vector-tile": "^3.0.0",
+        "@maplibre/geojson-vt": "^6.1.1",
+        "@maplibre/maplibre-gl-style-spec": "^26.4.1",
+        "@maplibre/mlt": "^1.2.0",
+        "@maplibre/vt-pbf": "^4.3.2",
         "@types/geojson": "^7946.0.16",
-        "earcut": "^3.0.2",
+        "earcut": "^3.2.3",
         "gl-matrix": "^3.4.4",
-        "kdbush": "^4.0.2",
+        "kdbush": "^4.1.0",
         "murmurhash-js": "^1.0.0",
-        "pbf": "^4.0.1",
+        "pbf": "^5.1.2",
         "potpack": "^2.1.0",
         "quickselect": "^3.0.0",
         "tinyqueue": "^3.0.0"
@@ -2012,18 +2468,6 @@
         "url": "https://github.com/maplibre/maplibre-gl-js?sponsor=1"
       }
     },
-    "node_modules/maplibre-gl/node_modules/pbf": {
-      "version": "4.0.2",
-      "resolved": "https://registry.npmjs.org/pbf/-/pbf-4.0.2.tgz",
-      "integrity": "sha512-J0ajxARhZfpUEebxYs1vhMGMuLSXtBe1e+fFPDrf2uA2hgo+UshKfNUWOz92HJNz6/NFEXseQPddnHkTreWRqg==",
-      "license": "BSD-3-Clause",
-      "dependencies": {
-        "resolve-protobuf-schema": "^2.1.0"
-      },
-      "bin": {
-        "pbf": "bin/pbf"
-      }
-    },
     "node_modules/merge2": {
       "version": "1.4.1",
       "resolved": "https://registry.npmjs.org/merge2/-/merge2-1.4.1.tgz",
diff --git a/package.json b/package.json
index 04979ed..4c9c612 100644
--- a/package.json
+++ b/package.json
@@ -15,6 +15,7 @@
   "license": "GPL-3.0-or-later",
   "devDependencies": {
     "del": "^6.1.1",
+    "esbuild": "^0.28.2",
     "gulp": "^5.0.1",
     "gulp-clean-css": "^4.3.0",
     "gulp-concat": "^2.6.1",
@@ -31,6 +32,6 @@
     "leaflet.fullscreen": "^5.3.3",
     "leaflet.locatecontrol": "^0.90.1",
     "leaflet.markercluster": "^1.5.3",
-    "maplibre-gl": "^5.24.0"
+    "maplibre-gl": "^6.7.0"
   }
 }