diff --git a/Cargo.lock b/Cargo.lock
index d3201a9..0c5f911 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -189,14 +189,13 @@ dependencies = [
 
 [[package]]
 name = "regex"
-version = "1.4.3"
+version = "1.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d9251239e129e16308e70d853559389de218ac275b515068abc96829d05b948a"
+checksum = "957056ecddbeba1b26965114e191d2e8589ce74db242b6ea25fc4062427a5c19"
 dependencies = [
  "aho-corasick",
  "memchr",
  "regex-syntax",
- "thread_local",
 ]
 
 [[package]]
@@ -292,15 +291,6 @@ version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f764005d11ee5f36500a149ace24e00e3da98b0158b3e2d53a7495660d3f4d60"
 
-[[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 = "unicode-xid"
 version = "0.2.1"
diff --git a/Cargo.toml b/Cargo.toml
index dddc76a..7dc3986 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -22,7 +22,7 @@ aoc-runner-derive = "0.3.0"
 itertools = "0.10.0"
 lazy_static = "1.4.0"
 lexical = "5.2.0"
-regex = "1.4.3"
+regex = "1.4.5"
 regex-macro = "0.1.1"
 ring-algorithm = "0.2.3"
 serde_scan = "0.4.1"