diff --git a/Cargo.lock b/Cargo.lock
index 6e9e5e0bc..1b8d8b6de 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -71,12 +71,11 @@ dependencies = [
 
 [[package]]
 name = "argh_derive"
-version = "0.1.9"
+version = "0.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aa013479b80109a1bf01a039412b0f0013d716f36921226d86c6709032fb7a03"
+checksum = "b382dbd3288e053331f03399e1db106c9fb0d8562ad62cb04859ae926f324fa6"
 dependencies = [
  "argh_shared",
- "heck",
  "proc-macro2",
  "quote",
  "syn",
@@ -84,9 +83,9 @@ dependencies = [
 
 [[package]]
 name = "argh_shared"
-version = "0.1.9"
+version = "0.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "149f75bbec1827618262e0855a68f0f9a7f2edc13faebf33c4f16d6725edb6a9"
+checksum = "64cb94155d965e3d37ffbbe7cc5b82c3dd79dd33bd48e536f73d2cfb8d85506f"
 
 [[package]]
 name = "autocfg"
@@ -375,12 +374,6 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9b919933a397b79c37e33b77bb2aa3dc8eb6e165ad809e58ff75bc7db2e34574"
 
-[[package]]
-name = "heck"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2540771e65fc8cb83cd6e8a237f70c319bd5c29f78ed1084ba5d50eeac86f7f9"
-
 [[package]]
 name = "hermit-abi"
 version = "0.2.6"