diff --git a/lean-toolchain b/lean-toolchain
index 2e97c23fea..b20d041b5f 100644
--- a/lean-toolchain
+++ b/lean-toolchain
@@ -1 +1 @@
-leanprover/lean4:nightly-2022-12-02
+leanprover/lean4:nightly-2023-01-10