diff --git a/README.md b/README.md
index 1b2a640b..249549b6 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 [![Made with Doom Emacs](https://img.shields.io/badge/Made_with-Doom_Emacs-blueviolet.svg?style=flat-square&logo=GNU%20Emacs&logoColor=white)](https://github.com/hlissner/doom-emacs)
-[![NixOS 21.03](https://img.shields.io/badge/NixOS-v21.03-blue.svg?style=flat-square&logo=NixOS&logoColor=white)](https://nixos.org)
+[![NixOS 21.05](https://img.shields.io/badge/NixOS-v21.05-blue.svg?style=flat-square&logo=NixOS&logoColor=white)](https://nixos.org)
 
 **Hey,** you. You're finally awake. You were trying to configure your OS declaratively, right? Walked right into that NixOS ambush, same as us, and those dotfiles over there.
 
@@ -28,7 +28,7 @@
 
 ## Quick start
 
-1. Yoink the latest build of [NixOS 21.03][nixos].
+1. Yoink the latest build of [NixOS 21.05][nixos].
 2. Boot into the installer.
 3. Do your partitions and mount your root to `/mnt` ([for example](hosts/kuro/README.org))
 4. Install these dotfiles: