diff --git a/Cargo.lock b/Cargo.lock
index 93ff353401982..b5c62a7b1651a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1978,9 +1978,9 @@ dependencies = [
 
 [[package]]
 name = "chrono-tz"
-version = "0.8.3"
+version = "0.8.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f1369bc6b9e9a7dfdae2055f6ec151fe9c554a9d23d357c0237cee2e25eaabb7"
+checksum = "e23185c0e21df6ed832a12e2bda87c7d1def6842881fb634a8511ced741b0d76"
 dependencies = [
  "chrono",
  "chrono-tz-build",
@@ -1990,9 +1990,9 @@ dependencies = [
 
 [[package]]
 name = "chrono-tz-build"
-version = "0.2.0"
+version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e2f5ebdc942f57ed96d560a6d1a459bae5851102a25d5bf89dc04ae453e31ecf"
+checksum = "433e39f13c9a060046954e0592a8d0a4bcb1040125cbf91cb8ee58964cfb350f"
 dependencies = [
  "parse-zoneinfo",
  "phf",
diff --git a/lib/vector-common/Cargo.toml b/lib/vector-common/Cargo.toml
index 49ca1c7e895fe..532ced9704705 100644
--- a/lib/vector-common/Cargo.toml
+++ b/lib/vector-common/Cargo.toml
@@ -43,7 +43,7 @@ tokenize = [
 [dependencies]
 async-stream = "0.3.5"
 bytes = { version = "1.5.0", default-features = false, optional = true }
-chrono-tz = { version = "0.8.3", default-features = false, features = ["serde"] }
+chrono-tz = { version = "0.8.4", default-features = false, features = ["serde"] }
 chrono = { version = "0.4", default-features = false, optional = true, features = ["clock"] }
 crossbeam-utils = { version = "0.8.16", default-features = false }
 derivative = { version = "2.2.0", default-features = false }
diff --git a/lib/vector-config/Cargo.toml b/lib/vector-config/Cargo.toml
index 27f8f8baf4c19..f1968cc2b8b92 100644
--- a/lib/vector-config/Cargo.toml
+++ b/lib/vector-config/Cargo.toml
@@ -12,7 +12,7 @@ path = "tests/integration/lib.rs"
 
 [dependencies]
 chrono = { version = "0.4.31", default-features = false }
-chrono-tz = { version = "0.8.3", default-features = false }
+chrono-tz = { version = "0.8.4", default-features = false }
 encoding_rs = { version = "0.8", default-features = false, features = ["alloc", "serde"] }
 indexmap = { version = "2.0", default-features = false, features = ["std"] }
 inventory = { version = "0.3" }
diff --git a/lib/vector-core/Cargo.toml b/lib/vector-core/Cargo.toml
index 859554905b227..a85c8149c7930 100644
--- a/lib/vector-core/Cargo.toml
+++ b/lib/vector-core/Cargo.toml
@@ -75,7 +75,7 @@ prost-build = "0.12"
 
 [dev-dependencies]
 base64 = "0.21.5"
-chrono-tz = { version = "0.8.3", default-features = false }
+chrono-tz = { version = "0.8.4", default-features = false }
 criterion = { version = "0.5.1", features = ["html_reports"] }
 env-test-util = "1.0.1"
 quickcheck = "1"