diff --git a/Installation.md b/Installation.md
index 7c06b41..66a0114 100644
--- a/Installation.md
+++ b/Installation.md
@@ -19,7 +19,7 @@ go install github.com/hajimehoshi/ebiten/...
 
 # Modules (Go 1.11 and later)
 
-As of Go 1.11, modules are introduced experimentally. You can work with Ebiten without GOPATH environment variable. If you want to use Ebiten with modules, execute these commands with Go 1.11:
+As of Go 1.11, modules are introduced. You can work with Ebiten without GOPATH environment variable. If you want to use Ebiten with modules, execute these commands with Go 1.11:
 
 ```sh
 # Write your game at your favorite directory.