diff --git a/shell.nix b/shell.nix
index 056d12d..9bedb05 100644
--- a/shell.nix
+++ b/shell.nix
@@ -1,8 +1,8 @@
 let
     rust_overlay = import (builtins.fetchTarball "https://github.com/oxalica/rust-overlay/archive/master.tar.gz");
-    pkgs = import <pkgs-21.05> { overlays = [ rust_overlay ]; };
+    pkgs = import <pkgs-21.11> { overlays = [ rust_overlay ]; };
     unstable = import <unstable> {};
-    rust = pkgs.rust-bin.stable."1.54.0".default.override {
+    rust = pkgs.rust-bin.stable."1.59.0".default.override {
       extensions = [ "rust-src" ];
     };