diff --git a/Cargo.lock b/Cargo.lock
index cd35b94..a1d3a35 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -16,7 +16,7 @@ dependencies = [
 
 [[package]]
 name = "approx"
-version = "0.3.0"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "num-traits 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -134,7 +134,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 name = "hyperfine"
 version = "1.5.0"
 dependencies = [
- "approx 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "approx 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "atty 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "clap 2.32.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -630,7 +630,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 [metadata]
 "checksum aho-corasick 0.6.9 (registry+https://github.com/rust-lang/crates.io-index)" = "1e9a933f4e58658d7b12defcf96dc5c720f20832deebe3e0a19efd3b6aaeeb9e"
 "checksum ansi_term 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ee49baf6cb617b853aa8d93bf420db2383fab46d314482ca2803b40d5fde979b"
-"checksum approx 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "f71f10b5c4946a64aad7b8cf65e3406cd3da22fc448595991d22423cf6db67b4"
+"checksum approx 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "3c57ff1a5b00753647aebbbcf4ea67fa1e711a65ea7a30eb90dbf07de2485aee"
 "checksum atty 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)" = "9a7d5b8723950951411ee34d271d99dddcc2035a16ab25310ea2c8cfd4369652"
 "checksum bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "228047a76f468627ca71776ecdebd732a3423081fcf5125585bcd7c49886ce12"
 "checksum cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "082bb9b28e00d3c9d39cc03e64ce4cea0f1bb9b3fde493f0cbc008472d22bdf4"