diff --git a/lean-toolchain b/lean-toolchain
index e6a8c3c1f..18640c8b0 100644
--- a/lean-toolchain
+++ b/lean-toolchain
@@ -1 +1 @@
-leanprover/lean4:v4.31.0-rc2
+leanprover/lean4:v4.31.0