diff --git a/lake-manifest.json b/lake-manifest.json
index 212d31998..aaf68e799 100644
--- a/lake-manifest.json
+++ b/lake-manifest.json
@@ -65,10 +65,10 @@
    "type": "git",
    "subDir": null,
    "scope": "",
-   "rev": "743a5e8b688cdb0cae231901dc222e469268d5a8",
+   "rev": "76800560a1efa8663ed89214fc1196c97b89ff89",
    "name": "mathlib",
    "manifestFile": "lake-manifest.json",
-   "inputRev": "nightly-testing-2024-08-02",
+   "inputRev": "nightly-testing-2024-08-03",
    "inherited": false,
    "configFile": "lakefile.lean"},
   {"url": "https://github.com/acmepjz/md4lean",
diff --git a/lakefile.toml b/lakefile.toml
index bb7161597..9b7d47831 100644
--- a/lakefile.toml
+++ b/lakefile.toml
@@ -4,7 +4,7 @@ defaultTargets = ["SSA"]
 [[require]]
 name = "mathlib"
 git = "https://github.com/leanprover-community/mathlib4"
-rev = "nightly-testing-2024-08-02"
+rev = "nightly-testing-2024-08-03"
 
 [[require]]
 name = "Cli"
diff --git a/lean-toolchain b/lean-toolchain
index c78c147de..7e87556fb 100644
--- a/lean-toolchain
+++ b/lean-toolchain
@@ -1 +1 @@
-leanprover/lean4:nightly-2024-08-02
+leanprover/lean4:nightly-2024-08-03