diff --git a/examples/06_advisories/Cargo.lock b/examples/06_advisories/Cargo.lock
index 281032af..59b39d43 100644
--- a/examples/06_advisories/Cargo.lock
+++ b/examples/06_advisories/Cargo.lock
@@ -24,7 +24,6 @@ dependencies = [
  "ammonia 0.7.0",
  "artifact_serde",
  "axum-core",
- "const-cstr",
  "dirs",
  "failure",
  "lettre",
@@ -192,12 +191,6 @@ dependencies = [
  "bitflags",
 ]
 
-[[package]]
-name = "const-cstr"
-version = "0.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ed3d0b5ff30645a68f35ece8cea4556ca14ef8a1651455f789a099a0513532a6"
-
 [[package]]
 name = "core-foundation"
 version = "0.9.1"