diff --git a/nix/pkgs.nix b/nix/pkgs.nix
index e407ccc..010d02b 100644
--- a/nix/pkgs.nix
+++ b/nix/pkgs.nix
@@ -1,8 +1,8 @@
 let
-  # master as of 2021-04-21
-  rev = "fce51c84574b3a17f0cc53792189aeff4abc5663";
+  # master as of 2022-05-16
+  rev = "72cb3780a57881aa2fc5e2268380d85de7ea2b4c";
 
-  sha256 = "10gp1567xcgaxajmzqm6svv2sxxl8c897c790vw9gw889pia6v4p";
+  sha256 = "sha256-NNuTF0Z2jHErDr0JLXd+h996xPXGS9cbBBJDENUf13o=";
 
   nixpkgs = builtins.fetchTarball {
     url = "https://github.com/NixOS/nixpkgs/archive/${rev}.tar.gz";