diff --git a/nixos/modules/installer/tools/nix-fallback-paths.nix b/nixos/modules/installer/tools/nix-fallback-paths.nix
index 0c9981470d72..833782477199 100644
--- a/nixos/modules/installer/tools/nix-fallback-paths.nix
+++ b/nixos/modules/installer/tools/nix-fallback-paths.nix
@@ -1,5 +1,5 @@
 {
-  x86_64-linux = "/nix/store/j6q3pb75q1sbk0xsa5x6a629ph98ycdl-nix-1.11.8";
-  i686-linux = "/nix/store/4m6ps568l988bbr1p2k3w9raq3rblppi-nix-1.11.8";
-  x86_64-darwin = "/nix/store/cc5q944yn3j2hrs8k0kxx9r2mk9mni8a-nix-1.11.8";
+  x86_64-linux = "/nix/store/71im965h634iy99zsmlncw6qhx5jcclx-nix-1.11.9";
+  i686-linux = "/nix/store/cgvavixkayc36l6kl92i8mxr6k0p2yhy-nix-1.11.9";
+  x86_64-darwin = "/nix/store/w1c96v5yxvdmq4nvqlxjvg6kp7xa2lag-nix-1.11.9";
 }
diff --git a/pkgs/tools/package-management/nix/default.nix b/pkgs/tools/package-management/nix/default.nix
index eaab261adef8..bf6216ccc67b 100644
--- a/pkgs/tools/package-management/nix/default.nix
+++ b/pkgs/tools/package-management/nix/default.nix
@@ -125,10 +125,10 @@ in rec {
   nix = nixStable;
 
   nixStable = (common rec {
-    name = "nix-1.11.8";
+    name = "nix-1.11.9";
     src = fetchurl {
       url = "http://nixos.org/releases/nix/${name}/${name}.tar.xz";
-      sha256 = "69e0f398affec2a14c47b46fec712906429c85312d5483be43e4c34da4f63f67";
+      sha256 = "0e943e277f37843f9196b0293cc31d828613ad7a328ee77cd5be01935dc6e7e1";
     };
 
     # Until 1.11.9 is released, we do this :)