diff --git a/Cargo.lock b/Cargo.lock
index e65344dba..3c606e034 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -252,7 +252,7 @@ dependencies = [
  "matches 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "pulldown-cmark 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "quine-mc_cluskey 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex-syntax 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex-syntax 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.29 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.29 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -613,7 +613,7 @@ dependencies = [
  "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
  "md5 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex-syntax 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex-syntax 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "sha1 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "sha2 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "sha3 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -924,7 +924,7 @@ dependencies = [
  "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
  "memchr 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex-syntax 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex-syntax 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "uucore 0.0.1",
 ]
 
@@ -1128,7 +1128,7 @@ dependencies = [
  "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
  "memchr 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex-syntax 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex-syntax 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "uucore 0.0.1",
 ]
 
@@ -1241,7 +1241,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "aho-corasick 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "memchr 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex-syntax 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex-syntax 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "thread_local 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "utf8-ranges 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1256,7 +1256,7 @@ dependencies = [
 
 [[package]]
 name = "regex-syntax"
-version = "0.6.0"
+version = "0.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "ucd-util 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2171,7 +2171,7 @@ dependencies = [
 "checksum regex 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)" = "a62bf8bb734ab90b7f234b681b01af396e5d39b028906c210dc04fa1d5e9e5b3"
 "checksum regex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "75ecf88252dce580404a22444fc7d626c01815debba56a7f4f536772a5ff19d3"
 "checksum regex-syntax 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)" = "7d707a4fa2637f2dca2ef9fd02225ec7661fe01a53623c1e6515b6916511f7a7"
-"checksum regex-syntax 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "8f1ac0f60d675cc6cf13a20ec076568254472551051ad5dd050364d70671bf6b"
+"checksum regex-syntax 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)" = "05b06a75f5217880fc5e905952a42750bf44787e56a6c6d6852ed0992f5e1d54"
 "checksum remove_dir_all 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "3488ba1b9a2084d38645c4c08276a1752dcbf2c7130d74f1569681ad5d2799c5"
 "checksum rust-users 0.6.0 (git+https://github.com/uutils/rust-users)" = "<none>"
 "checksum rustc-demangle 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)" = "76d7ba1feafada44f2d38eed812bd2489a03c0f5abb975799251518b68848649"
diff --git a/src/hashsum/Cargo.toml b/src/hashsum/Cargo.toml
index 9250f305f..492dddc51 100644
--- a/src/hashsum/Cargo.toml
+++ b/src/hashsum/Cargo.toml
@@ -15,7 +15,7 @@ hex = "0.2.0"
 libc = "0.2.42"
 md5 = "0.3.5"
 regex = "0.2.2"
-regex-syntax = "0.6.0"
+regex-syntax = "0.6.1"
 sha1 = "0.6.0"
 sha2 = "0.6.0"
 sha3 = "0.6.0"
diff --git a/src/nl/Cargo.toml b/src/nl/Cargo.toml
index 2dd448ae6..536612461 100644
--- a/src/nl/Cargo.toml
+++ b/src/nl/Cargo.toml
@@ -14,7 +14,7 @@ libc = "0.2.42"
 aho-corasick = "0.6.3"
 memchr = "1.0.1"
 regex = "0.2.2"
-regex-syntax = "0.6.0"
+regex-syntax = "0.6.1"
 uucore = { path="../uucore" }
 
 [[bin]]
diff --git a/src/ptx/Cargo.toml b/src/ptx/Cargo.toml
index 5b1404a2c..629c4190e 100644
--- a/src/ptx/Cargo.toml
+++ b/src/ptx/Cargo.toml
@@ -13,7 +13,7 @@ getopts = "0.2.14"
 libc = "0.2.42"
 aho-corasick = "0.6.3"
 memchr = "1.0.1"
-regex-syntax = "0.6.0"
+regex-syntax = "0.6.1"
 regex = "0.2.2"
 uucore = { path="../uucore" }