diff --git a/lean-toolchain b/lean-toolchain
index a611f88e6e..db18b25d62 100644
--- a/lean-toolchain
+++ b/lean-toolchain
@@ -1 +1 @@
-leanprover/lean4:nightly-2025-01-06
+leanprover/lean4-pr-releases:pr-release-6551