diff --git a/lean-toolchain b/lean-toolchain
index 87b20aaf8..4d6fa16ed 100644
--- a/lean-toolchain
+++ b/lean-toolchain
@@ -1 +1 @@
-leanprover/lean4:v4.29.0-rc6
+leanprover/lean4:v4.29.0-rc7