diff --git a/README.md b/README.md
index 2053c9142..547c67ac4 100644
--- a/README.md
+++ b/README.md
@@ -95,6 +95,15 @@ $ curl --proto '=https' --tlsv1.2 -sSf -L https://install.determinate.systems/ni
 $ NIX_BUILD_GROUP_NAME=nixbuilder ./nix-installer install linux-multi --nix-build-group-id 4000
 ```
 
+### Upgrading Nix
+
+You can upgrade Nix (to the version specified [here](https://raw.githubusercontent.com/NixOS/nixpkgs/master/nixos/modules/installer/tools/nix-fallback-paths.nix)) by running:
+
+```
+sudo nix upgrade-nix
+```
+
+Alternatively, you can [uninstall](#uninstalling) and [reinstall](#usage) with a different version of the `nix-installer`.
 
 ### Uninstalling