diff --git a/Cargo.lock b/Cargo.lock
index 54fbfdb08..e06f56aa2 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -886,7 +886,7 @@ version = "3.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "parking_lot 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 0.8.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_codegen 0.8.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",