Switch to nixpkgs 19.09

1 files changed, 1 insertions, 1 deletions

diff --git a/shell.nix b/shell.nix
index 8167f87a2..9c504f024 100644
--- a/shell.nix
+++ b/shell.nix
@@ -1,6 +1,6 @@
 { useClang ? false }:
 
-with import (builtins.fetchTarball https://github.com/NixOS/nixpkgs-channels/archive/nixos-19.03.tar.gz) {};
+with import (builtins.fetchTarball https://github.com/NixOS/nixpkgs-channels/archive/nixos-19.09.tar.gz) {};
 
 with import ./release-common.nix { inherit pkgs; };