diff --git a/README.md b/README.md
index a5aee9a..4c532ec 100644
--- a/README.md
+++ b/README.md
@@ -10,4 +10,5 @@ This project uses `make` to build. You can run `make` to build the application.
 
 The goal should be to use to as least as possible external packages.
 
-- [urfave/cli](https://github.com/urfave/cli): cli building package
+- [cobra - Modern CLI applications](https://github.com/spf13/cobra)
+- [viper - Go configurations](https://github.com/spf13/viper)