diff --git a/Cargo.lock b/Cargo.lock
index 9c3333a6e7..59c9adce78 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2443,6 +2443,7 @@ dependencies = [
  "mio",
  "mio-named-pipes",
  "mio-uds",
+ "num_cpus",
  "pin-project-lite",
  "signal-hook-registry",
  "slab",