diff --git a/tracing-appender/Cargo.toml b/tracing-appender/Cargo.toml
index 7020cdc39d..1e51039a99 100644
--- a/tracing-appender/Cargo.toml
+++ b/tracing-appender/Cargo.toml
@@ -23,7 +23,7 @@ rust-version = "1.53.0"
 [dependencies]
 crossbeam-channel = "0.5.0"
 time = { version = "0.3", default-features = false, features = ["formatting"] }
-parking_lot = { optional = true, version = "0.11.2" }
+parking_lot = { optional = true, version = "0.12.0" }
 
 [dependencies.tracing-subscriber]
 path = "../tracing-subscriber"