diff --git a/pkgs/by-name/le/lean4/package.nix b/pkgs/by-name/le/lean4/package.nix
index b223cc5daa86..17bd27de10e1 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 = "4.29.0";
+  version = "4.29.1";
 
   # 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 = "sha256-0v4OTrCLdHBbWJUq7hIjJonqget9SvsG3izGlOwhwyU=";
+    hash = "sha256-pdhRPjSic2H8zPJXLmyfN8umKDoafjmSo4OQSRxIbyE=";
   };
 
   postPatch =