diff --git a/Cargo.lock b/Cargo.lock
index 3a19194e..3130a42e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -209,6 +209,7 @@ name = "kupyna"
 version = "0.1.0"
 dependencies = [
  "digest",
+ "hex-literal",
 ]
 
 [[package]]