diff --git a/nixos/modules/installer/tools/nix-fallback-paths.nix b/nixos/modules/installer/tools/nix-fallback-paths.nix
index a15a2dbadb8..bd70bd20013 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/4vz8sh9ngx34ivi0bw5hlycxdhvy5hvz-nix-2.3.7";
-  i686-linux = "/nix/store/dzxkg9lpp60bjmzvagns42vqlz3yq5kx-nix-2.3.7";
-  aarch64-linux = "/nix/store/cfvf8nl8mwyw817by5y8zd3s8pnf5m9f-nix-2.3.7";
-  x86_64-darwin = "/nix/store/5ira7xgs92inqz1x8l0n1wci4r79hnd0-nix-2.3.7";
+  x86_64-linux = "/nix/store/qxayqjmlpqnmwg5yfsjjayw220ls8i2r-nix-2.3.8";
+  i686-linux = "/nix/store/5834psaay75048jp6d07liqh4j0v1swd-nix-2.3.8";
+  aarch64-linux = "/nix/store/pic90a5fxvifz05jzkd0zak21f9mjin6-nix-2.3.8";
+  x86_64-darwin = "/nix/store/cjx3f8z12wlayp5983kli2a52ipi8jz2-nix-2.3.8";
 }
diff --git a/pkgs/tools/package-management/nix/default.nix b/pkgs/tools/package-management/nix/default.nix
index d92981e479a..791780ae095 100644
--- a/pkgs/tools/package-management/nix/default.nix
+++ b/pkgs/tools/package-management/nix/default.nix
@@ -188,10 +188,10 @@ in rec {
   nix = nixStable;
 
   nixStable = callPackage common (rec {
-    name = "nix-2.3.7";
+    name = "nix-2.3.8";
     src = fetchurl {
       url = "https://nixos.org/releases/nix/${name}/${name}.tar.xz";
-      sha256 = "dd8f52849414e5a878afe7e797aa4e22bab77c875d9da5a38d5f1bada704e596";
+      sha256 = "c7119823c1eabdcc9e527cc96a91f11a0b0e63f3840a02fe7573538dad2dad2a";
     };
 
     inherit storeDir stateDir confDir boehmgc;