diff --git a/Cargo.lock b/Cargo.lock
index 5b6ab965..5c47b151 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3374,9 +3374,9 @@ dependencies = [
 
 [[package]]
 name = "regex"
-version = "1.5.4"
+version = "1.5.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d07a8629359eb56f1e2fb1652bb04212c072a87ba68546a04065d525673ac461"
+checksum = "1a11647b6b25ff05a515cb92c365cec08801e83423a235b51e231e1808747286"
 dependencies = [
  "aho-corasick",
  "memchr",
diff --git a/zebra-network/Cargo.toml b/zebra-network/Cargo.toml
index a1d9776c..f0afed77 100644
--- a/zebra-network/Cargo.toml
+++ b/zebra-network/Cargo.toml
@@ -22,7 +22,7 @@ lazy_static = "1.4.0"
 ordered-map = "0.4.2"
 pin-project = "1.0.10"
 rand = { version = "0.8.5", package = "rand" }
-regex = "1.5.4"
+regex = "1.5.5"
 serde = { version = "1.0.136", features = ["serde_derive"] }
 thiserror = "1.0.30"
 
diff --git a/zebra-state/Cargo.toml b/zebra-state/Cargo.toml
index a5a963a0..8e653ee9 100644
--- a/zebra-state/Cargo.toml
+++ b/zebra-state/Cargo.toml
@@ -20,7 +20,7 @@ metrics = "0.17.1"
 mset = "0.1.0"
 proptest = { version = "0.10.1", optional = true }
 proptest-derive = { version = "0.3.0", optional = true }
-regex = "1.5.4"
+regex = "1.5.5"
 rlimit = "0.7.0"
 rocksdb = "0.18.0"
 serde = { version = "1.0.136", features = ["serde_derive"] }
diff --git a/zebra-test/Cargo.toml b/zebra-test/Cargo.toml
index 4ef2aa5c..ff88c74c 100644
--- a/zebra-test/Cargo.toml
+++ b/zebra-test/Cargo.toml
@@ -14,7 +14,7 @@ insta = "1.13.0"
 proptest = "0.10.1"
 once_cell = "1.10.0"
 rand = { version = "0.8.5", package = "rand" }
-regex = "1.5.4"
+regex = "1.5.5"
 
 tokio = { version = "1.17.0", features = ["full"] }
 tower = { version = "0.4.12", features = ["util"] }
diff --git a/zebrad/Cargo.toml b/zebrad/Cargo.toml
index a44e7ed7..3fe1bb15 100644
--- a/zebrad/Cargo.toml
+++ b/zebrad/Cargo.toml
@@ -59,7 +59,7 @@ vergen = { version = "6.0.2", default-features = false, features = ["cargo", "gi
 [dev-dependencies]
 abscissa_core = { version = "0.5", features = ["testing"] }
 once_cell = "1.10.0"
-regex = "1.5.4"
+regex = "1.5.5"
 semver = "1.0.6"
 serde_json = "1.0"
 tempfile = "3.3.0"