diff --git a/lake-manifest.json b/lake-manifest.json
index 1b65110..97e9a04 100644
--- a/lake-manifest.json
+++ b/lake-manifest.json
@@ -5,17 +5,17 @@
    "type": "git",
    "subDir": null,
    "scope": "",
-   "rev": "daf1ed91789811cf6bbb7bf2f4dad6b3bad8fbf4",
+   "rev": "31a10a332858d6981dbcf55d54ee51680dd75f18",
    "name": "batteries",
    "manifestFile": "lake-manifest.json",
    "inputRev": "main",
    "inherited": false,
-   "configFile": "lakefile.lean"},
+   "configFile": "lakefile.toml"},
   {"url": "https://github.com/fgdorais/lean4-unicode-basic",
    "type": "git",
    "subDir": null,
    "scope": "",
-   "rev": "85ac5d8d9714ecf88d602e1a113719d450d7b44a",
+   "rev": "c45466d308879f48e06cbb9baa9de48bb7b164e0",
    "name": "UnicodeBasic",
    "manifestFile": "lake-manifest.json",
    "inputRev": "main",
diff --git a/lean-toolchain b/lean-toolchain
index eff86fd..4f86f95 100644
--- a/lean-toolchain
+++ b/lean-toolchain
@@ -1 +1 @@
-leanprover/lean4:v4.13.0-rc3
+leanprover/lean4:v4.13.0