From b7188305480b3d6c5b48466d33d8f2b688525ebf Mon Sep 17 00:00:00 2001
From: jthulhu <adrien.lc.mathieu@gmail.com>
Date: Mon, 30 Jun 2025 15:15:39 +0200
Subject: [PATCH] lean4: 4.20.0 -> 4.21.0

Release notes:
- https://github.com/leanprover/lean4/releases/tag/v4.21.0-rc1
- https://github.com/leanprover/lean4/releases/tag/v4.21.0-rc2
- https://github.com/leanprover/lean4/releases/tag/v4.21.0-rc3
- https://github.com/leanprover/lean4/releases/tag/v4.21.0
---
 pkgs/by-name/le/lean4/package.nix | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pkgs/by-name/le/lean4/package.nix b/pkgs/by-name/le/lean4/package.nix
index d47474effe06..931573dad309 100644
--- a/pkgs/by-name/le/lean4/package.nix
+++ b/pkgs/by-name/le/lean4/package.nix
@@ -15,7 +15,7 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "lean4";
-  version = "4.20.0";
+  version = "4.21.0";
 
   # Using a vendored version rather than nixpkgs' version to match the exact version required by
   # Lean.  Apparently, even a slight version change can impact greatly the final performance.
@@ -30,7 +30,7 @@ stdenv.mkDerivation (finalAttrs: {
     owner = "leanprover";
     repo = "lean4";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-1V3Uk96wdNJ3IP+hvXb5Hep8w8QK8GjqaeTVG+KUqXU=";
+    hash = "sha256-IZSx7KmkLMEob8BmK/Bi4sS5nh78NHPQPJYgedv2+6Y=";
   };
 
   postPatch =