diff --git a/pkgs/tools/package-management/nix/default.nix b/pkgs/tools/package-management/nix/default.nix
index d8dba67d39b0..73e715bddb38 100644
--- a/pkgs/tools/package-management/nix/default.nix
+++ b/pkgs/tools/package-management/nix/default.nix
@@ -113,5 +113,5 @@ in lib.makeExtensible (self: {
 
   stable = self.nix_2_12;
 
-  unstable = self.stable;
+  unstable = self.nix_2_13;
 })