--- once_cell-1.3.1/Cargo.toml	2020-01-17T14:54:13+00:00
+++ once_cell-1.3.1/Cargo.toml	2020-04-01T22:03:16.374781+00:00
@@ -52,11 +52,11 @@
 name = "test_synchronization"
 required-features = ["std"]
 [dependencies.parking_lot]
-version = "0.9.0"
+version = "0.10.0"
 optional = true
 default_features = false
 [dev-dependencies.crossbeam-utils]
-version = "0.6.0"
+version = "0.7.2"
 
 [dev-dependencies.lazy_static]
 version = "1.0.0"