diff --git a/Cargo.lock b/Cargo.lock
index e563312209f538..1db97a71a87f4e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -5616,7 +5616,7 @@ version = "2.1.0"
 dependencies = [
  "bincode",
  "qualifier_attr",
- "rustc_version 0.4.0",
+ "rustc_version 0.4.1",
  "serde",
  "serde_bytes",
  "serde_derive",