diff --git a/README.md b/README.md
index e40544e..5c7bd22 100644
--- a/README.md
+++ b/README.md
@@ -41,7 +41,7 @@ end
 
 ```elixir
 defp deps do
-  [{:isn, "~> 2.0"}]
+  [{:isn, "~> 3.0"}]
 end
 ```