diff --git a/js/CHANGELOG.md b/js/CHANGELOG.md
index c077066..1f58039 100644
--- a/js/CHANGELOG.md
+++ b/js/CHANGELOG.md
@@ -1,3 +1,6 @@
+4.3.0
+* improve ZXY to HilbertID conversion by @ciscorn [#527]
+
 4.2.1
 * MapLibre adapter detects erroneous tileset bounds and shows console error [#508]
 
diff --git a/js/examples/leaflet.html b/js/examples/leaflet.html
index 830c3ee..9b45e16 100644
--- a/js/examples/leaflet.html
+++ b/js/examples/leaflet.html
@@ -4,7 +4,7 @@
         <meta charset="utf-8"/>
         <link rel="stylesheet" href="https://unpkg.com/leaflet@1.9.0/dist/leaflet.css" />
         <script src="https://unpkg.com/leaflet@1.9.0/dist/leaflet.js"></script>
-        <script src="https://unpkg.com/pmtiles@4.2.1/dist/pmtiles.js"></script>
+        <script src="https://unpkg.com/pmtiles@4.3.0/dist/pmtiles.js"></script>
         <style>
             body, #map {
                 height:100vh;
diff --git a/js/examples/maplibre.html b/js/examples/maplibre.html
index 10900fe..5299184 100644
--- a/js/examples/maplibre.html
+++ b/js/examples/maplibre.html
@@ -4,7 +4,7 @@
         <meta charset="utf-8"/>
         <link rel="stylesheet" href="https://unpkg.com/maplibre-gl@4.7.0/dist/maplibre-gl.css" crossorigin="anonymous">
         <script src="https://unpkg.com/maplibre-gl@4.7.0/dist/maplibre-gl.js" crossorigin="anonymous"></script>
-        <script src="https://unpkg.com/pmtiles@4.2.1/dist/pmtiles.js"></script>
+        <script src="https://unpkg.com/pmtiles@4.3.0/dist/pmtiles.js"></script>
         <style>
             body {
                 margin: 0;
diff --git a/js/examples/maplibre_advanced.html b/js/examples/maplibre_advanced.html
index b479966..f80032f 100644
--- a/js/examples/maplibre_advanced.html
+++ b/js/examples/maplibre_advanced.html
@@ -4,7 +4,7 @@
         <meta charset="utf-8"/>
         <link rel="stylesheet" href="https://unpkg.com/maplibre-gl@4.7.0/dist/maplibre-gl.css" crossorigin="anonymous">
         <script src="https://unpkg.com/maplibre-gl@4.7.0/dist/maplibre-gl.js" crossorigin="anonymous"></script>
-        <script src="https://unpkg.com/pmtiles@4.2.1/dist/pmtiles.js"></script>
+        <script src="https://unpkg.com/pmtiles@4.3.0/dist/pmtiles.js"></script>
         <style>
             body {
                 margin: 0;
diff --git a/js/examples/maplibre_raster_dem.html b/js/examples/maplibre_raster_dem.html
index 8a46aba..6f337e1 100644
--- a/js/examples/maplibre_raster_dem.html
+++ b/js/examples/maplibre_raster_dem.html
@@ -4,7 +4,7 @@
         <meta charset="utf-8"/>
         <link rel="stylesheet" href="https://unpkg.com/maplibre-gl@4.7.0/dist/maplibre-gl.css" crossorigin="anonymous">
         <script src="https://unpkg.com/maplibre-gl@4.7.0/dist/maplibre-gl.js" crossorigin="anonymous"></script>
-        <script src="https://unpkg.com/pmtiles@4.2.1/dist/pmtiles.js"></script>
+        <script src="https://unpkg.com/pmtiles@4.3.0/dist/pmtiles.js"></script>
         <style>
             body {
                 margin: 0;
diff --git a/js/package-lock.json b/js/package-lock.json
index 4fd3a30..78c3031 100644
--- a/js/package-lock.json
+++ b/js/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "pmtiles",
-  "version": "4.2.1",
+  "version": "4.3.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "pmtiles",
-      "version": "4.2.1",
+      "version": "4.3.0",
       "license": "BSD-3-Clause",
       "dependencies": {
         "fflate": "^0.8.2"
diff --git a/js/package.json b/js/package.json
index aff150c..3ba8737 100644
--- a/js/package.json
+++ b/js/package.json
@@ -1,6 +1,6 @@
 {
   "name": "pmtiles",
-  "version": "4.2.1",
+  "version": "4.3.0",
   "description": "PMTiles archive decoder for browsers",
   "type": "module",
   "main": "dist/cjs/index.cjs",
diff --git a/openlayers/package-lock.json b/openlayers/package-lock.json
index e98fca2..c73788e 100644
--- a/openlayers/package-lock.json
+++ b/openlayers/package-lock.json
@@ -9,7 +9,7 @@
       "version": "2.0.1",
       "license": "BSD-3-Clause",
       "dependencies": {
-        "pmtiles": "^4.2.1"
+        "pmtiles": "^4.3.0"
       },
       "devDependencies": {
         "tsup": "^8.2.3",
@@ -1750,9 +1750,9 @@
       }
     },
     "node_modules/pmtiles": {
-      "version": "4.2.1",
-      "resolved": "https://registry.npmjs.org/pmtiles/-/pmtiles-4.2.1.tgz",
-      "integrity": "sha512-Z73aph49f7KpU7JPb+zDWr+62wPv9jF3p+tvvL26/XeECnzUHnQ0nGopXGPYnq+OQXqyaXZPrsNdKxSD+2HlLA==",
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/pmtiles/-/pmtiles-4.3.0.tgz",
+      "integrity": "sha512-wnzQeSiYT/MyO63o7AVxwt7+uKqU0QUy2lHrivM7GvecNy0m1A4voVyGey7bujnEW5Hn+ZzLdvHPoFaqrOzbPA==",
       "license": "BSD-3-Clause",
       "dependencies": {
         "fflate": "^0.8.2"
diff --git a/openlayers/package.json b/openlayers/package.json
index da5f2cc..3d5d377 100644
--- a/openlayers/package.json
+++ b/openlayers/package.json
@@ -42,7 +42,7 @@
     "prettier-check": "prettier --check *.js"
   },
   "dependencies": {
-    "pmtiles": "^4.2.1"
+    "pmtiles": "^4.3.0"
   },
   "devDependencies": {
     "tsup": "^8.2.3",
diff --git a/serverless/aws/package-lock.json b/serverless/aws/package-lock.json
index e5ea290..682f273 100644
--- a/serverless/aws/package-lock.json
+++ b/serverless/aws/package-lock.json
@@ -10,7 +10,7 @@
       "dependencies": {
         "@aws-sdk/client-s3": "^3.637.0",
         "@smithy/node-http-handler": "^3.1.4",
-        "pmtiles": "^4.2.1"
+        "pmtiles": "^4.3.0"
       },
       "devDependencies": {
         "@biomejs/biome": "^1.5.3",
@@ -2618,9 +2618,9 @@
       }
     },
     "node_modules/pmtiles": {
-      "version": "4.2.1",
-      "resolved": "https://registry.npmjs.org/pmtiles/-/pmtiles-4.2.1.tgz",
-      "integrity": "sha512-Z73aph49f7KpU7JPb+zDWr+62wPv9jF3p+tvvL26/XeECnzUHnQ0nGopXGPYnq+OQXqyaXZPrsNdKxSD+2HlLA==",
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/pmtiles/-/pmtiles-4.3.0.tgz",
+      "integrity": "sha512-wnzQeSiYT/MyO63o7AVxwt7+uKqU0QUy2lHrivM7GvecNy0m1A4voVyGey7bujnEW5Hn+ZzLdvHPoFaqrOzbPA==",
       "license": "BSD-3-Clause",
       "dependencies": {
         "fflate": "^0.8.2"
@@ -4972,9 +4972,9 @@
       }
     },
     "pmtiles": {
-      "version": "4.2.1",
-      "resolved": "https://registry.npmjs.org/pmtiles/-/pmtiles-4.2.1.tgz",
-      "integrity": "sha512-Z73aph49f7KpU7JPb+zDWr+62wPv9jF3p+tvvL26/XeECnzUHnQ0nGopXGPYnq+OQXqyaXZPrsNdKxSD+2HlLA==",
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/pmtiles/-/pmtiles-4.3.0.tgz",
+      "integrity": "sha512-wnzQeSiYT/MyO63o7AVxwt7+uKqU0QUy2lHrivM7GvecNy0m1A4voVyGey7bujnEW5Hn+ZzLdvHPoFaqrOzbPA==",
       "requires": {
         "fflate": "^0.8.2"
       }
diff --git a/serverless/aws/package.json b/serverless/aws/package.json
index b0cb653..2e77a61 100644
--- a/serverless/aws/package.json
+++ b/serverless/aws/package.json
@@ -22,6 +22,6 @@
   "dependencies": {
     "@aws-sdk/client-s3": "^3.637.0",
     "@smithy/node-http-handler": "^3.1.4",
-    "pmtiles": "^4.2.1"
+    "pmtiles": "^4.3.0"
   }
 }
diff --git a/serverless/cloudflare/package-lock.json b/serverless/cloudflare/package-lock.json
index 833ad6a..f52e860 100644
--- a/serverless/cloudflare/package-lock.json
+++ b/serverless/cloudflare/package-lock.json
@@ -8,7 +8,7 @@
       "name": "pmtiles-cloudflare",
       "version": "0.0.1",
       "dependencies": {
-        "pmtiles": "^4.2.1"
+        "pmtiles": "^4.3.0"
       },
       "devDependencies": {
         "@biomejs/biome": "^1.5.3",
@@ -1324,9 +1324,9 @@
       }
     },
     "node_modules/pmtiles": {
-      "version": "4.2.1",
-      "resolved": "https://registry.npmjs.org/pmtiles/-/pmtiles-4.2.1.tgz",
-      "integrity": "sha512-Z73aph49f7KpU7JPb+zDWr+62wPv9jF3p+tvvL26/XeECnzUHnQ0nGopXGPYnq+OQXqyaXZPrsNdKxSD+2HlLA==",
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/pmtiles/-/pmtiles-4.3.0.tgz",
+      "integrity": "sha512-wnzQeSiYT/MyO63o7AVxwt7+uKqU0QUy2lHrivM7GvecNy0m1A4voVyGey7bujnEW5Hn+ZzLdvHPoFaqrOzbPA==",
       "license": "BSD-3-Clause",
       "dependencies": {
         "fflate": "^0.8.2"
@@ -2818,9 +2818,9 @@
       "dev": true
     },
     "pmtiles": {
-      "version": "4.2.1",
-      "resolved": "https://registry.npmjs.org/pmtiles/-/pmtiles-4.2.1.tgz",
-      "integrity": "sha512-Z73aph49f7KpU7JPb+zDWr+62wPv9jF3p+tvvL26/XeECnzUHnQ0nGopXGPYnq+OQXqyaXZPrsNdKxSD+2HlLA==",
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/pmtiles/-/pmtiles-4.3.0.tgz",
+      "integrity": "sha512-wnzQeSiYT/MyO63o7AVxwt7+uKqU0QUy2lHrivM7GvecNy0m1A4voVyGey7bujnEW5Hn+ZzLdvHPoFaqrOzbPA==",
       "requires": {
         "fflate": "^0.8.2"
       }
diff --git a/serverless/cloudflare/package.json b/serverless/cloudflare/package.json
index 7af6592..67299cd 100644
--- a/serverless/cloudflare/package.json
+++ b/serverless/cloudflare/package.json
@@ -19,6 +19,6 @@
     "biome-check": "biome check --config-path=../../js src/index.ts"
   },
   "dependencies": {
-    "pmtiles": "^4.2.1"
+    "pmtiles": "^4.3.0"
   }
 }