diff --git a/dns_utility/Cargo.lock b/dns_utility/Cargo.lock
index 33fbc9193..b814fae4d 100644
--- a/dns_utility/Cargo.lock
+++ b/dns_utility/Cargo.lock
@@ -43,9 +43,9 @@ dependencies = [
 
 [[package]]
 name = "aho-corasick"
-version = "0.7.6"
+version = "0.7.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "58fb5e95d83b38284460a5fda7d6470aa0b8844d283a0b614b8535e880800d2d"
+checksum = "1e37cfd5e7657ada45f742d6e99ca5788580b5c529dc78faf11ece6dc702656f"
 dependencies = [
  "memchr",
 ]
@@ -740,9 +740,9 @@ checksum = "60302e4db3a61da70c0cb7991976248362f30319e88850c487b9b95bbf059e00"
 
 [[package]]
 name = "memchr"
-version = "2.2.1"
+version = "2.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "88579771288728879b57485cc7d6b07d648c9f0141eb955f8ab7f9d45394468e"
+checksum = "b16bd47d9e329435e309c58469fe0791c2d0d1ba96ec0954152a5ae2b04387dc"
 
 [[package]]
 name = "memoffset"
@@ -1097,21 +1097,20 @@ checksum = "2439c63f3f6139d1b57529d16bc3b8bb855230c8efcc5d3a896c8bea7c3b1e84"
 
 [[package]]
 name = "regex"
-version = "1.4.3"
+version = "1.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d9251239e129e16308e70d853559389de218ac275b515068abc96829d05b948a"
+checksum = "ce5f1ceb7f74abbce32601642fcf8e8508a8a8991e0621c7d750295b9095702b"
 dependencies = [
  "aho-corasick",
  "memchr",
  "regex-syntax",
- "thread_local",
 ]
 
 [[package]]
 name = "regex-syntax"
-version = "0.6.22"
+version = "0.6.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b5eb417147ba9860a96cfe72a0b93bf88fee1744b5636ec99ab20c1aa9376581"
+checksum = "f497285884f3fcff424ffc933e56d7cbca511def0c9831a7f9b5f6153e3cc89b"
 
 [[package]]
 name = "resolv-conf"
@@ -1377,15 +1376,6 @@ dependencies = [
  "unicode-width",
 ]
 
-[[package]]
-name = "thread_local"
-version = "1.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d40c6d1b69745a6ec6fb1ca717914848da4b44ae29d9b3080cbee91d72a69b14"
-dependencies = [
- "lazy_static",
-]
-
 [[package]]
 name = "time"
 version = "0.1.42"
diff --git a/dns_utility/Cargo.toml b/dns_utility/Cargo.toml
index f825efa76..41a9c1064 100644
--- a/dns_utility/Cargo.toml
+++ b/dns_utility/Cargo.toml
@@ -8,7 +8,7 @@ description = "Command-line utility to turn DNS subversion on and off"
 edition = "2018"
 
 [dependencies]
-regex = "1.4.3"
+regex = "1.5.3"
 libc = "0.2.86"
 masq_lib = { path = "../masq_lib" }
 ipconfig = "0.2.2"