diff --git a/nixos/modules/installer/tools/nix-fallback-paths.nix b/nixos/modules/installer/tools/nix-fallback-paths.nix
index b9ab2053c41f..2673887d2b96 100644
--- a/nixos/modules/installer/tools/nix-fallback-paths.nix
+++ b/nixos/modules/installer/tools/nix-fallback-paths.nix
@@ -1,6 +1,6 @@
 {
-  x86_64-linux = "/nix/store/hbhdjn5ik3byg642d1m11k3k3s0kn3py-nix-2.2.2";
-  i686-linux = "/nix/store/fz5cikwvj3n0a6zl44h6l2z3cin64mda-nix-2.2.2";
-  aarch64-linux = "/nix/store/2gba4cyl4wvxzfbhmli90jy4n5aj0kjj-nix-2.2.2";
-  x86_64-darwin = "/nix/store/87i4fp46jfw9yl8c7i9gx75m5yph7irl-nix-2.2.2";
+  x86_64-linux = "/nix/store/3ds3cgji9vjxdbgp10av6smyym1126d1-nix-2.3";
+  i686-linux = "/nix/store/ln1ndqvfpc9cdl03vqxi6kvlxm9wfv9g-nix-2.3";
+  aarch64-linux = "/nix/store/n8a1rwzrp20qcr2c4hvyn6c5q9zx8csw-nix-2.3";
+  x86_64-darwin = "/nix/store/jq6npmpld02sz4rgniz0qrsdfnm6j17a-nix-2.3";
 }
diff --git a/pkgs/tools/package-management/nix/default.nix b/pkgs/tools/package-management/nix/default.nix
index 6e7aac706538..69489e271cba 100644
--- a/pkgs/tools/package-management/nix/default.nix
+++ b/pkgs/tools/package-management/nix/default.nix
@@ -174,10 +174,10 @@ in rec {
   };
 
   nixStable = callPackage common (rec {
-    name = "nix-2.2.2";
+    name = "nix-2.3";
     src = fetchurl {
       url = "http://nixos.org/releases/nix/${name}/${name}.tar.xz";
-      sha256 = "f80a1b4f9837a8d33209f0b7769d5038335459ff4303eccf3e9217a9eca8594c";
+      sha256 = "b1d1b4d87390941fc64b19776f1ed9e3871231d38f5a1f295dd13925acd3a98d";
     };
 
     inherit storeDir stateDir confDir boehmgc;