diff --git a/README.md b/README.md
index d80dd12..a27d201 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 # hobby kernel in zig
 
+# WARNING: this project was written for zig 0.5, it doesn't compile for future versions
+
 ![screenshot](screenshot.png)
 
 ### features