diff --git a/lean-toolchain b/lean-toolchain
index 62c31b25be..a8ebac2bee 100644
--- a/lean-toolchain
+++ b/lean-toolchain
@@ -1 +1 @@
-leanprover/lean4:nightly-2022-03-21
+leanprover/lean4:nightly-2022-05-14