diff --git a/README.md b/README.md
index 70e24af..53132f4 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 ## Update:
 
-The iOS jank issue relating to shader warmup is now largely mitigated by shader pre-compilation as described [here](https://github.com/flutter/flutter/issues/79298?fbclid=IwAR2Mmv5QnZUSRw7uDaa21unLCt-QXTv8pv3C0VBcw9iv_Mb2RX7pMhzGIQQ). Huge thanks to the Flutter team!
+Don't use this. The iOS jank issue relating to shader warmup is now largely mitigated by shader pre-compilation as described [here](https://github.com/flutter/flutter/issues/79298?fbclid=IwAR2Mmv5QnZUSRw7uDaa21unLCt-QXTv8pv3C0VBcw9iv_Mb2RX7pMhzGIQQ). Huge thanks to the Flutter team!
 
 # warmup_routine