diff --git a/dns_utility/Cargo.lock b/dns_utility/Cargo.lock
index 33fbc9193..3dac0bd7d 100644
--- a/dns_utility/Cargo.lock
+++ b/dns_utility/Cargo.lock
@@ -1097,14 +1097,13 @@ checksum = "2439c63f3f6139d1b57529d16bc3b8bb855230c8efcc5d3a896c8bea7c3b1e84"
 
 [[package]]
 name = "regex"
-version = "1.4.3"
+version = "1.4.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d9251239e129e16308e70d853559389de218ac275b515068abc96829d05b948a"
+checksum = "2a26af418b574bd56588335b3a3659a65725d4e636eb1016c2f9e3b38c7cc759"
 dependencies = [
  "aho-corasick",
  "memchr",
  "regex-syntax",
- "thread_local",
 ]
 
 [[package]]
@@ -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..abdd399b9 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 = "1.4.6"
 libc = "0.2.86"
 masq_lib = { path = "../masq_lib" }
 ipconfig = "0.2.2"