diff --git a/CHANGELOG.md b/CHANGELOG.md
index 108af87..be2fed3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # tileserver-gl changelog
 
+## 5.1.0-pre.0
+* Upgrade Express to v5 +Canvas v3 + code cleanup (https://github.com/maptiler/tileserver-gl/pull/1429) by @acalcutt
+* Terrain Preview and simple Elevation Query (https://github.com/maptiler/tileserver-gl/pull/1425 and #https://github.com/maptiler/tileserver-gl/pull/1432) by @okimiko
+* add progressive rendering option for static jpeg images (#1397) by @samuel-git
+
 ## 5.0.0
 * Update Maplibre-Native to [v6.0.0](https://github.com/maplibre/maplibre-native/releases/tag/node-v6.0.0) release by @acalcutt in https://github.com/maptiler/tileserver-gl/pull/1376 and @dependabot in https://github.com/maptiler/tileserver-gl/pull/1381 
   *  This first release that use Metal for rendering instead of OpenGL (ES) for macOS. 
diff --git a/package-lock.json b/package-lock.json
index b94d941..7fcd23e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "tileserver-gl",
-  "version": "5.0.0",
+  "version": "5.1.0-pre.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "tileserver-gl",
-      "version": "5.0.0",
+      "version": "5.1.0-pre.0",
       "license": "BSD-2-Clause",
       "dependencies": {
         "@jsse/pbfont": "^0.2.2",
diff --git a/package.json b/package.json
index 888370f..3d40623 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "tileserver-gl",
-  "version": "5.0.0",
+  "version": "5.1.0-pre.0",
   "description": "Map tile server for JSON GL styles - vector and server side generated raster tiles",
   "main": "src/main.js",
   "bin": "src/main.js",