diff --git a/Cargo.lock b/Cargo.lock
index 6a119f8..9a789da 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -741,7 +741,6 @@ dependencies = [
  "reqwest 0.8.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "send-cell 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
- "take_mut 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "url 1.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1799,11 +1798,6 @@ name = "take"
 version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "take_mut"
-version = "0.2.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "tempdir"
 version = "0.3.7"
@@ -2403,7 +2397,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum synom 0.11.3 (registry+https://github.com/rust-lang/crates.io-index)" = "a393066ed9010ebaed60b9eafa373d4b1baac186dd7e008555b0f702b51945b6"
 "checksum synstructure 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)" = "3a761d12e6d8dcb4dcf952a7a89b475e3a9d69e4a69307e01a470977642914bd"
 "checksum take 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b157868d8ac1f56b64604539990685fa7611d8fa9e5476cf0c02cf34d32917c5"
-"checksum take_mut 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "f764005d11ee5f36500a149ace24e00e3da98b0158b3e2d53a7495660d3f4d60"
 "checksum tempdir 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)" = "15f2b5fb00ccdf689e0149d1b1b3c03fead81c2b37735d812fa8bddbbf41b6d8"
 "checksum tendril 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "9de21546595a0873061940d994bbbc5c35f024ae4fd61ec5c5b159115684f508"
 "checksum term 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "5e6b677dd1e8214ea1ef4297f85dbcbed8e8cdddb561040cc998ca2551c37561"
diff --git a/hammond-gtk/Cargo.toml b/hammond-gtk/Cargo.toml
index 316ebd8..d8cd1bd 100644
--- a/hammond-gtk/Cargo.toml
+++ b/hammond-gtk/Cargo.toml
@@ -21,7 +21,6 @@ send-cell = "0.1.3"
 url = "1.7.0"
 failure = "0.1.1"
 failure_derive = "0.1.1"
-take_mut = "0.2.2"
 regex = "1.0.0"
 reqwest = "0.8.5"
 serde_json = "1.0.17"