diff --git a/repos/nix b/repos/nix
index 1b26cb632..aa9ab8bbe 160000
--- a/repos/nix
+++ b/repos/nix
@@ -1 +1 @@
-Subproject commit 1b26cb63284287344bc3820804cea18419b3edec
+Subproject commit aa9ab8bbe68fc30c830f423d25638ff943cb89d0