diff --git a/lake-manifest.json b/lake-manifest.json
index f0838b743..11aab928a 100644
--- a/lake-manifest.json
+++ b/lake-manifest.json
@@ -5,7 +5,7 @@
    "type": "git",
    "subDir": null,
    "scope": "",
-   "rev": "7489983fa2848d9864dedbd31dfd34f4dfd98c5d",
+   "rev": "c5447fa72ccb4bfc11a505b9d59b65f7cc1d794e",
    "name": "leanwuzla",
    "manifestFile": "lake-manifest.json",
    "inputRev": "main",
diff --git a/lean-toolchain b/lean-toolchain
index ce85f8691..2d81ec76c 100644
--- a/lean-toolchain
+++ b/lean-toolchain
@@ -1 +1 @@
-leanprover/lean4:nightly-2024-12-22
+leanprover/lean4-pr-releases:pr-release-6453