From 615b97bed9d6627bff11254627e3359660b00e02 Mon Sep 17 00:00:00 2001
From: Joscha <joscha@plugh.de>
Date: Mon, 8 Jun 2026 14:17:11 +0200
Subject: [PATCH] chore: bump toolchain to v4.31.0-rc2

---
 lake-manifest.json | 2 +-
 lean-toolchain     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/lake-manifest.json b/lake-manifest.json
index af32031..f1344de 100644
--- a/lake-manifest.json
+++ b/lake-manifest.json
@@ -5,7 +5,7 @@
    "type": "git",
    "subDir": null,
    "scope": "leanprover",
-   "rev": "cd502a76e05515e7d3e09eaefee1dfd8349ca592",
+   "rev": "b66b1cd7b8819db6059bc3d6093b22b0a380e793",
    "name": "lean4export",
    "manifestFile": "lake-manifest.json",
    "inputRev": "master",
diff --git a/lean-toolchain b/lean-toolchain
index 8c7e931..e6a8c3c 100644
--- a/lean-toolchain
+++ b/lean-toolchain
@@ -1 +1 @@
-leanprover/lean4:v4.31.0-rc1
+leanprover/lean4:v4.31.0-rc2