diff --git a/lake-manifest.json b/lake-manifest.json
index 9596c920b..ebfb9d6be 100644
--- a/lake-manifest.json
+++ b/lake-manifest.json
@@ -5,10 +5,10 @@
    "type": "git",
    "subDir": null,
    "scope": "",
-   "rev": "565b7a94f01f2535d6aca55e00235019e32ea316",
+   "rev": "b1620a88d642c02d5224e8c41afdfdbfce3f9458",
    "name": "mathlib",
    "manifestFile": "lake-manifest.json",
-   "inputRev": "nightly-testing-2026-05-13",
+   "inputRev": "nightly-testing-2026-05-14",
    "inherited": false,
    "configFile": "lakefile.lean"},
   {"url": "https://github.com/leanprover-community/plausible",
@@ -75,7 +75,7 @@
    "type": "git",
    "subDir": null,
    "scope": "leanprover-community",
-   "rev": "f11a2c52c4f86fa93faed78afb2ac59ccb8d71ea",
+   "rev": "75de20bc148838e1899c122129e347ed77518db2",
    "name": "batteries",
    "manifestFile": "lake-manifest.json",
    "inputRev": "nightly-testing",
diff --git a/lakefile.toml b/lakefile.toml
index 4c2b4744e..7b61f54ec 100644
--- a/lakefile.toml
+++ b/lakefile.toml
@@ -18,7 +18,7 @@ weak.linter.unicodeLinter = false
 [[require]]
 name = "mathlib"
 git = "https://github.com/leanprover-community/mathlib4-nightly-testing"
-rev = "nightly-testing-2026-05-13"
+rev = "nightly-testing-2026-05-14"
 
 [[lean_lib]]
 name = "Cslib"
diff --git a/lean-toolchain b/lean-toolchain
index af93dff0a..d92ef1e2b 100644
--- a/lean-toolchain
+++ b/lean-toolchain
@@ -1 +1 @@
-leanprover/lean4:nightly-2026-05-13
+leanprover/lean4:nightly-2026-05-14