diff --git a/README.md b/README.md
index 536aa74..53e1f7c 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@ Tengo is [fast](#benchmark) as it's compiled to bytecode and executed on stack-b
 - Dynamically typed with type coercions
 - First-class functions and Closures
 - Garbage collected _(thanks to Go runtime)_
-- Easily extendible using customizable types
+- Easily extensible using customizable types
 - Written in pure Go _(no CGO, no external dependencies)_
 - Executable as a [standalone language](https://github.com/d5/tengo#tengo-as-a-standalone-language) _(without writing any Go code)_