diff --git a/Cargo.lock b/Cargo.lock
index a9c58921..99c3f0ea 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -5,7 +5,7 @@ dependencies = [
  "atty 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "bytecount 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "clap 2.20.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "env_logger 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "env_logger 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "grep 0.1.5",
  "ignore 0.1.7",
  "lazy_static 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -77,7 +77,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "env_logger"
-version = "0.3.5"
+version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -325,7 +325,7 @@ dependencies = [
 "checksum bytecount 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "1e8f09fbc8c6726a4b616dcfbd4f54491068d6bb1b93ac03c78ac18ff9a5924a"
 "checksum clap 2.20.5 (registry+https://github.com/rust-lang/crates.io-index)" = "7db281b0520e97fbd15cd615dcd8f8bcad0c26f5f7d5effe705f090f39e9a758"
 "checksum crossbeam 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)" = "0c5ea215664ca264da8a9d9c3be80d2eaf30923c259d03e870388eb927508f97"
-"checksum env_logger 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "15abd780e45b3ea4f76b4e9a26ff4843258dd8a3eed2775a0e7368c2e7936c2f"
+"checksum env_logger 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "ed39959122ea027670b704fb70539f4286ddf4a49eefede23bf0b4b2a069ec03"
 "checksum fnv 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)" = "6cc484842f1e2884faf56f529f960cc12ad8c71ce96cc7abba0a067c98fee344"
 "checksum fs2 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "640001e1bd865c7c32806292822445af576a6866175b5225aa2087ca5e3de551"
 "checksum kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
diff --git a/Cargo.toml b/Cargo.toml
index 82efb047..2a079292 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -28,7 +28,7 @@ path = "tests/tests.rs"
 [dependencies]
 atty = "0.2.2"
 bytecount = "0.1.4"
-clap = "2.19.0"
+clap = "2.20.5"
 env_logger = { version = "0.4", default-features = false }
 grep = { version = "0.1.5", path = "grep" }
 ignore = { version = "0.1.7", path = "ignore" }