diff --git a/nixos/modules/installer/tools/nix-fallback-paths.nix b/nixos/modules/installer/tools/nix-fallback-paths.nix
index 1058a34133b14..582334a5aeaf5 100644
--- a/nixos/modules/installer/tools/nix-fallback-paths.nix
+++ b/nixos/modules/installer/tools/nix-fallback-paths.nix
@@ -1,7 +1,7 @@
 {
-  x86_64-linux = "/nix/store/mc43d38fibi94pp5crfwacl5gbslccd0-nix-2.13.3";
-  i686-linux = "/nix/store/09m966pj26cgd4ihlg8ihl1106j3vih8-nix-2.13.3";
-  aarch64-linux = "/nix/store/7f191d125akld27gc6jl0r13l8pl7x0h-nix-2.13.3";
-  x86_64-darwin = "/nix/store/1wn9jkvi2zqfjnjgg7lnp30r2q2y8whd-nix-2.13.3";
-  aarch64-darwin = "/nix/store/8w0v2mffa10chrf1h66cbvbpw86qmh85-nix-2.13.3";
+  x86_64-linux = "/nix/store/ny9r65799s7xhp605bc2753sjvzkxrrs-nix-2.15.1";
+  i686-linux = "/nix/store/ck55dz5klc7szi8rx9ghhm8gi2b5q5bw-nix-2.15.1";
+  aarch64-linux = "/nix/store/cl0a02vr28913dgw98hrm45a4baqr3z1-nix-2.15.1";
+  x86_64-darwin = "/nix/store/wq228jdbz16pp2lnxf32n8dv27pw53p8-nix-2.15.1";
+  aarch64-darwin = "/nix/store/x11cpsjg4q236msfz5scc325pfp9xy64-nix-2.15.1";
 }
diff --git a/pkgs/tools/package-management/nix/default.nix b/pkgs/tools/package-management/nix/default.nix
index a9d078d5ebd7a..7b727964d0ae5 100644
--- a/pkgs/tools/package-management/nix/default.nix
+++ b/pkgs/tools/package-management/nix/default.nix
@@ -204,7 +204,7 @@ in lib.makeExtensible (self: {
     else
       nix;
 
-  stable = self.nix_2_13;
+  stable = self.nix_2_15;
 
   unstable = self.nix_2_16;
 })