diff --git a/Cargo.lock b/Cargo.lock
index 89e47172..b5fe0958 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -54,10 +54,11 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "assert_cmd"
-version = "0.11.1"
+version = "0.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "escargot 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "doc-comment 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "escargot 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "predicates 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "predicates-core 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "predicates-tree 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -117,7 +118,7 @@ version = "0.12.1"
 dependencies = [
  "ansi_colours 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "ansi_term 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "assert_cmd 0.11.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "assert_cmd 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "atty 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "clap 2.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "console 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -454,17 +455,6 @@ dependencies = [
  "version_check 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "escargot"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.104 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.48 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "escargot"
 version = "0.5.0"
@@ -1451,7 +1441,7 @@ dependencies = [
 "checksum anymap 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)" = "33954243bd79057c2de7338850b85983a44588021f8a5fee574a8888c6de4344"
 "checksum arrayref 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "a4c527152e37cf757a3f78aae5a06fbeefdb07ccc535c980a3208ee3060dd544"
 "checksum arrayvec 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "cff77d8686867eceff3105329d4698d96c2391c176d5d03adc90c7389162b5b8"
-"checksum assert_cmd 0.11.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2dc477793bd82ec39799b6f6b3df64938532fdf2ab0d49ef817eac65856a5a1e"
+"checksum assert_cmd 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)" = "6283bac8dd7226470d491bc4737816fea4ca1fba7a2847f2e9097fd6bfb4624c"
 "checksum atty 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)" = "d9b39be18770d11421cdb1b9947a45dd3f37e93092cbf377614828a319d5fee8"
 "checksum autocfg 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "f8aac770f1885fd7e387acedd76065302551364496e46b3dd00860b2f8359b9d"
 "checksum backtrace 0.3.45 (registry+https://github.com/rust-lang/crates.io-index)" = "ad235dabf00f36301792cfe82499880ba54c6486be094d1047b02bacb67c14e8"
@@ -1495,7 +1485,6 @@ dependencies = [
 "checksum encoding_index_tests 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "a246d82be1c9d791c5dfde9a2bd045fc3cbba3fa2b11ad558f27d01712f00569"
 "checksum env_logger 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)" = "aafcde04e90a5226a6443b7aabdb016ba2f8307c847d524724bd9b346dd1a2d3"
 "checksum error-chain 0.12.2 (registry+https://github.com/rust-lang/crates.io-index)" = "d371106cc88ffdfb1eabd7111e432da544f16f3e2d7bf1dfe8bf575f1df045cd"
-"checksum escargot 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ceb9adbf9874d5d028b5e4c5739d22b71988252b25c9c98fe7cf9738bee84597"
 "checksum escargot 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "74cf96bec282dcdb07099f7e31d9fed323bca9435a09aba7b6d99b7617bca96d"
 "checksum failure 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "b8529c2421efa3066a5cbd8063d2244603824daccb6936b079010bb2aa89464b"
 "checksum fake-simd 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "e88a8acf291dafb59c2d96e8f59828f3838bb1a70398823ade51a84de6a6deed"
diff --git a/Cargo.toml b/Cargo.toml
index c54e45f1..c940d6c7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -50,7 +50,7 @@ features = []
 
 [dev-dependencies]
 tempdir = "0.3"
-assert_cmd = "0.11.1"
+assert_cmd = "0.12.0"
 escargot = "0.5.0"
 
 [build-dependencies]