Update to async/await-enabled tokio

1 files changed, 1 insertions, 1 deletions

diff --git a/shell.nix b/shell.nix
index 21ed47121..c709f6a5f 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-19.09.tar.gz) {};
+with import (builtins.fetchTarball https://github.com/NixOS/nixpkgs/archive/bb1013511e1e5edcf314df8321acf2f3c536df0d.tar.gz) {};
 
 with import ./release-common.nix { inherit pkgs; };