diff --git a/Cargo.lock b/Cargo.lock
index 59f4af8..16d8cc9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -8,15 +8,6 @@ version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
 
-[[package]]
-name = "ansi_term"
-version = "0.12.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d52a9bb7ec0cf484c551830a7ce27bd20d67eac647e1befb56b0be4ee39a55d2"
-dependencies = [
- "winapi",
-]
-
 [[package]]
 name = "assert-cmp"
 version = "0.2.0"
@@ -508,14 +499,14 @@ checksum = "c1be1ec9e59f0360aefe84efa6f699198b685ab0d5718081e9f72aa2344289e2"
 
 [[package]]
 name = "pretty_assertions"
-version = "1.2.1"
+version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c89f989ac94207d048d92db058e4f6ec7342b0971fc58d1271ca148b799b3563"
+checksum = "a25e9bcb20aa780fd0bb16b72403a9064d6b3f22f026946029acb941a50af755"
 dependencies = [
- "ansi_term",
  "ctor",
  "diff",
  "output_vt100",
+ "yansi",
 ]
 
 [[package]]
@@ -938,3 +929,9 @@ name = "windows_x86_64_msvc"
 version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9aec5da331524158c6d1a4ac0ab1541149c0b9505fde06423b02f5ef0106b9f0"
+
+[[package]]
+name = "yansi"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "09041cd90cf85f7f8b2df60c646f853b7f535ce68f85244eb6731cf89fa498ec"
diff --git a/Cargo.toml b/Cargo.toml
index 4e4c52f..8dd6645 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -48,7 +48,7 @@ clap-utilities = "0.1.0"
 [dev-dependencies]
 command-extra = "1.0.0"
 text-block-macros = "0.1.1"
-pretty_assertions = "1.2.1"
+pretty_assertions = "1.3.0"
 tempfile = "3.5.0"
 fs_extra = "1.3.0"
 assert-cmp = "0.2.0"