diff --git a/Cargo.lock b/Cargo.lock
index 3215ce5f1db..a1e0b3c4770 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -823,14 +823,13 @@ dependencies = [
 
 [[package]]
 name = "regex"
-version = "1.3.9"
+version = "1.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9c3780fcf44b193bc4d09f36d2a3c87b251da4a046c87795a0d35f4f927ad8e6"
+checksum = "54fd1046a3107eb58f42de31d656fee6853e5d276c455fd943742dce89fc3dd3"
 dependencies = [
  "aho-corasick",
  "memchr",
  "regex-syntax",
- "thread_local",
 ]
 
 [[package]]
@@ -844,9 +843,9 @@ dependencies = [
 
 [[package]]
 name = "regex-syntax"
-version = "0.6.18"
+version = "0.6.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "26412eb97c6b088a6997e05f69403a802a92d520de2f8e63c2b65f9e0f47c4e8"
+checksum = "24d5f089152e60f62d28b835fbff2cd2e8dc0baf1ac13343bef92ab7eed84548"
 
 [[package]]
 name = "rust-argon2"
@@ -1067,15 +1066,6 @@ 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 = "0.1.44"
diff --git a/boa/Cargo.toml b/boa/Cargo.toml
index 5d7abc9a35e..2aea8163553 100644
--- a/boa/Cargo.toml
+++ b/boa/Cargo.toml
@@ -18,7 +18,7 @@ gc = { version = "0.3.6", features = ["derive"] }
 serde_json = "1.0.58"
 rand = "0.7.3"
 num-traits = "0.2.12"
-regex = "1.3.9"
+regex = "1.4.4"
 rustc-hash = "1.1.0"
 num-bigint = { version = "0.3.0", features = ["serde"] }
 num-integer = "0.1.43"
diff --git a/boa_cli/Cargo.toml b/boa_cli/Cargo.toml
index 9644a84fa16..9f94ef11f08 100644
--- a/boa_cli/Cargo.toml
+++ b/boa_cli/Cargo.toml
@@ -17,7 +17,7 @@ rustyline-derive = "0.3.1"
 structopt = "0.3.18"
 serde_json = "1.0.58"
 colored = "2.0.0"
-regex = "1.3.9"
+regex = "1.4.4"
 lazy_static = "1.4.0"
 
 [target.x86_64-unknown-linux-gnu.dependencies]
diff --git a/boa_tester/Cargo.toml b/boa_tester/Cargo.toml
index 9191ce20d67..744e9992946 100644
--- a/boa_tester/Cargo.toml
+++ b/boa_tester/Cargo.toml
@@ -17,7 +17,7 @@ serde = { version = "1.0.116", features = ["derive"] }
 serde_yaml = "0.8.13"
 serde_json = "1.0.58"
 bitflags = "1.2.1"
-regex = "1.3.9"
+regex = "1.4.4"
 once_cell = "1.4.1"
 colored = "2.0.0"
 fxhash = "0.2.1"