diff --git a/Cargo.lock b/Cargo.lock
index 5549bcb79..79c74e400 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -912,7 +912,7 @@ dependencies = [
  "aho-corasick 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "getopts 0.2.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.58 (registry+https://github.com/rust-lang/crates.io-index)",
- "memchr 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 1.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex-syntax 0.6.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "uucore 0.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1089,7 +1089,7 @@ dependencies = [
  "aho-corasick 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "getopts 0.2.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.58 (registry+https://github.com/rust-lang/crates.io-index)",
- "memchr 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 1.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex-syntax 0.6.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "uucore 0.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
diff --git a/src/nl/Cargo.toml b/src/nl/Cargo.toml
index e3a9d6aa2..9d24c72be 100644
--- a/src/nl/Cargo.toml
+++ b/src/nl/Cargo.toml
@@ -12,7 +12,7 @@ path = "nl.rs"
 getopts = "0.2.18"
 libc = "0.2.42"
 aho-corasick = "0.6.5"
-memchr = "1.0.1"
+memchr = "2.2.0"
 regex = "1.0.1"
 regex-syntax = "0.6.7"
 uucore = "0.0.1"
diff --git a/src/ptx/Cargo.toml b/src/ptx/Cargo.toml
index 228c23961..64c6d98a9 100644
--- a/src/ptx/Cargo.toml
+++ b/src/ptx/Cargo.toml
@@ -12,7 +12,7 @@ path = "ptx.rs"
 getopts = "0.2.18"
 libc = "0.2.42"
 aho-corasick = "0.6.5"
-memchr = "1.0.1"
+memchr = "2.2.0"
 regex-syntax = "0.6.7"
 regex = "1.0.1"
 uucore = "0.0.1"