From 3e178f86c9657fccc5452033b3ec40a8967cb0cf Mon Sep 17 00:00:00 2001
From: "github-actions[bot]"
 <41898282+github-actions[bot]@users.noreply.github.com>
Date: Fri, 17 Jul 2026 06:52:52 +0000
Subject: [PATCH] chore: bump mathlib to bfefa91:
 fix(Algebra/MonoidAlgebra/Defs): rename AddMonoidAlgebra.coeff_zero_zero
 (#41783) (2026-07-17)

---
 lake-manifest.json | 6 +++---
 lakefile.toml      | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/lake-manifest.json b/lake-manifest.json
index 63f09b5f..e2658e8c 100644
--- a/lake-manifest.json
+++ b/lake-manifest.json
@@ -5,10 +5,10 @@
    "type": "git",
    "subDir": null,
    "scope": "leanprover-community",
-   "rev": "9ff650a05edbad3ca4c9f97a49454fb83ef803fe",
+   "rev": "bfefa91d21732b8ea21199657680224f37f8e748",
    "name": "mathlib",
    "manifestFile": "lake-manifest.json",
-   "inputRev": "9ff650a05edbad3ca4c9f97a49454fb83ef803fe",
+   "inputRev": "bfefa91d21732b8ea21199657680224f37f8e748",
    "inherited": false,
    "configFile": "lakefile.lean"},
   {"url": "https://github.com/leanprover/verso",
@@ -85,7 +85,7 @@
    "type": "git",
    "subDir": null,
    "scope": "leanprover-community",
-   "rev": "31a49105f960721073a9adfc82b261f5d0f2ce1e",
+   "rev": "45337c634fbcb2bb22fb45c9847faaa10d4d1b67",
    "name": "batteries",
    "manifestFile": "lake-manifest.json",
    "inputRev": "main",
diff --git a/lakefile.toml b/lakefile.toml
index a113ec90..09dd4769 100644
--- a/lakefile.toml
+++ b/lakefile.toml
@@ -17,7 +17,7 @@ rev = "main"
 [[require]]
 name = "mathlib"
 scope = "leanprover-community"
-rev = "9ff650a05edbad3ca4c9f97a49454fb83ef803fe"
+rev = "bfefa91d21732b8ea21199657680224f37f8e748"
 
 [[lean_lib]]
 name = "LeanMachineLearning"