diff --git a/lake-manifest.json b/lake-manifest.json
index ea136596..13eddb75 100644
--- a/lake-manifest.json
+++ b/lake-manifest.json
@@ -5,10 +5,10 @@
    "type": "git",
    "subDir": null,
    "scope": "leanprover-community",
-   "rev": "69aaaa313f441d9ce4fe99f374f20820116a8c92",
+   "rev": "b4384330e5b9d7268e11d3136e669205994fa74a",
    "name": "mathlib",
    "manifestFile": "lake-manifest.json",
-   "inputRev": "69aaaa313f441d9ce4fe99f374f20820116a8c92",
+   "inputRev": "b4384330e5b9d7268e11d3136e669205994fa74a",
    "inherited": false,
    "configFile": "lakefile.lean"},
   {"url": "https://github.com/leanprover/verso",
diff --git a/lakefile.toml b/lakefile.toml
index bd3b6407..5a2afd73 100644
--- a/lakefile.toml
+++ b/lakefile.toml
@@ -17,7 +17,7 @@ rev = "main"
 [[require]]
 name = "mathlib"
 scope = "leanprover-community"
-rev = "69aaaa313f441d9ce4fe99f374f20820116a8c92"
+rev = "b4384330e5b9d7268e11d3136e669205994fa74a"
 
 [[lean_lib]]
 name = "LeanMachineLearning"