diff --git a/nix/variables/versions.nix b/nix/variables/versions.nix
index 3d8fc1c..2739d8a 100644
--- a/nix/variables/versions.nix
+++ b/nix/variables/versions.nix
@@ -1,20 +1,20 @@
 {
   channelsNixosStable = {
-    ref = "nixos-19.03";
-    rev = "3a4ffdd38b56801ce616aa08791121d36769e884";
+    ref = "nixos-19.09";
+    rev = "c5aabb0d603e2c1ea05f5a93b3be82437f5ebf31";
   };
   channelsNixosUnstable = {
     ref = "nixos-unstable";
-    rev = "07b42ccf2de451342982b550657636d891c4ba35";
+    rev = "7827d3f4497ed722fedca57fd4d5ca1a65c38256";
   };
   nixpkgsMaster = {
     url = "https://github.com/NixOS/nixpkgs/";
     ref = "master";
-    rev = "d8c7f0bd3f42bc9e687b12ce7f0a4ef747f27933";
+    rev = "abe853b84c58ddbb7c5c07e80090d47480d56c11";
   };
   homeManagerModule = {
     url = "https://github.com/rycee/home-manager";
     ref = "master";
-    rev = "03162970cd6dadfac58f169cd50aed5a5aeec14f";
+    rev = "450571056552c9311fcb2894328696b535265593";
   };
 }