diff --git a/CHANGELOG.md b/CHANGELOG.md
index 217d8de5e..70110cc6e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,8 @@
 # Pre-releases
 
+## 5.3.0-alpha.1 - April 23
+- Add discard too picking.js fragment shader (#509)
+
 ## 5.2.0-beta.2 - April 16
 - Upgrade math.gl and probe.gl to official (non-alpha) versions
 - VertexArray: move private methods to end of class (#498)
diff --git a/package.json b/package.json
index 710135ccb..f5adcb50a 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "luma.gl",
-  "version": "5.2.0-beta.2",
+  "version": "5.3.0-alpha.1",
   "description": "A WebGL JavaScript visualization library.",
   "license": "MIT",
   "contributors": [