diff --git a/README.md b/README.md
index 5ac2fd2..55283d8 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@ AWS Smithy Model for Zig
 ========================
 
 This holds a smithy project for zig, extracted from the AWS SDK for Zig for
-use as a package. Built for zig 0.11
+use as a package. Built for zig 0.15.1
 
 TODO: complete the readme
 TODO: CI