--- a/Cargo.toml
+++ b/Cargo.toml
@@ -747,9 +747,6 @@
 [dev-dependencies.tokio-test]
 version = "0.4.0"
 
-[target.'cfg(all(tokio_unstable, target_has_atomic = "64"))'.dev-dependencies.tracing-mock]
-version = "= 0.1.0-beta.1"
-
 [target.'cfg(not(all(target_family = "wasm", target_os = "unknown")))'.dev-dependencies.rand]
 version = "0.8.0"