diff --git a/lean-toolchain b/lean-toolchain
index 3a7249d..8e2eb6d 100644
--- a/lean-toolchain
+++ b/lean-toolchain
@@ -1 +1 @@
-leanprover/lean4-pr-releases:pr-release-3159
\ No newline at end of file
+leanprover/lean4:v4.6.0-rc1
\ No newline at end of file