diff --git a/lean-toolchain b/lean-toolchain
index 1e9ed23..14f72b5 100644
--- a/lean-toolchain
+++ b/lean-toolchain
@@ -1 +1 @@
-leanprover/lean4:nightly-2023-10-12
+leanprover/lean4-pr-releases:pr-release-2749