diff --git a/README.md b/README.md
index 51454c59..ee6c8527 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# dotSCAD 2.5
+# dotSCAD 3.0 Dev
 
 > **Reduce the burden of mathematics/algorithm when playing OpenSCAD.**
 
@@ -8,7 +8,7 @@
 
 ## Introduction
 
-**This library requires OpenSCAD 2019.05 or later.** 
+**This library requires OpenSCAD 2021.01 or later.** 
 
 Some of my [3D models](https://github.com/JustinSDK/dotSCAD#examples) require complex mathematics/algorithm. I extract them into dotSCAD. Hope it helps when you're playing OpenSCAD.