diff --git a/Cargo.toml b/Cargo.toml
index 7f79819..29a5a7f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -19,7 +19,7 @@ bitflags = "1"
 futures-intrusive = "0.4"
 futures-task = "0.3"
 num_cpus = "1"
-parking_lot = "0.11"
+parking_lot = "0.12"
 priority-queue = "1"
 slotmap = "1.0"