1 files changed, 6 insertions, 6 deletions
diff --git a/shell.nix b/shell.nix
index 63a61e0..1dd46bd 100644
--- a/shell.nix
+++ b/shell.nix
@@ -1,9 +1,9 @@
-with import (builtins.fetchTarball {
-  # https://github.com/NixOS/nixpkgs/commit/77752c6c086512a7c1eb066edcef731696fa2a8e
-  name = "nixpkgs-20-12-2019";
-  url = https://github.com/nixos/nixpkgs/archive/77752c6c086512a7c1eb066edcef731696fa2a8e.tar.gz;
-  sha256 = "1sb6c9pzq4rjc8sj41qw01b38119xk91pmlxwl80fqhg8mj1ai8r";
-}) {};
+with (import (builtins.fetchGit {
+  name = "nixpkgs-20.03";
+  url = "git@github.com:nixos/nixpkgs.git";
+  rev = "5272327b81ed355bbed5659b8d303cf2979b6953";
+  ref = "refs/tags/20.03";
+}){});
 
 mkShell {
   buildInputs = [