diff --git a/README.md b/README.md
index a445d2f..88e591d 100644
--- a/README.md
+++ b/README.md
@@ -9,6 +9,7 @@ The implementation of OpenAPI v3.1 Specification for Go using generics.
 
 ## Supported Go versions:
 
+* v1.21
 * v1.20
 * v1.19
 * v1.18