diff --git a/lake-manifest.json b/lake-manifest.json
index c24d801..d8a8062 100644
--- a/lake-manifest.json
+++ b/lake-manifest.json
@@ -13,7 +13,7 @@
   {"url": "https://github.com/leanprover-community/batteries",
    "type": "git",
    "subDir": null,
-   "rev": "56d2e4ee226603eb6b90b05f6b944bde42672cd5",
+   "rev": "51e6e0d24db9341fb031288c298b7e6b56102253",
    "name": "batteries",
    "manifestFile": "lake-manifest.json",
    "inputRev": "main",
diff --git a/lean-toolchain b/lean-toolchain
index d8a6d7e..ef1f67e 100644
--- a/lean-toolchain
+++ b/lean-toolchain
@@ -1 +1 @@
-leanprover/lean4:v4.8.0-rc1
+leanprover/lean4:v4.8.0