diff --git a/Cargo.lock b/Cargo.lock
index 33c9ae9..4123643 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -854,19 +854,18 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "29c39203181991a7dd4343b8005bd804e7a9a37afb8ac070e43771e8c820bbde"
 dependencies = [
  "chrono",
- "chrono-tz-build 0.0.3",
+ "chrono-tz-build",
  "phf 0.11.3",
 ]
 
 [[package]]
 name = "chrono-tz"
-version = "0.9.0"
+version = "0.10.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "93698b29de5e97ad0ae26447b344c482a7284c737d9ddc5f9e52b74a336671bb"
+checksum = "a6139a8597ed92cf816dfb33f5dd6cf0bb93a6adc938f11039f371bc5bcd26c3"
 dependencies = [
  "chrono",
- "chrono-tz-build 0.3.0",
- "phf 0.11.3",
+ "phf 0.12.1",
 ]
 
 [[package]]
@@ -880,17 +879,6 @@ dependencies = [
  "phf_codegen 0.11.3",
 ]
 
-[[package]]
-name = "chrono-tz-build"
-version = "0.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0c088aee841df9c3041febbb73934cfc39708749bf96dc827e3359cd39ef11b1"
-dependencies = [
- "parse-zoneinfo",
- "phf 0.11.3",
- "phf_codegen 0.11.3",
-]
-
 [[package]]
 name = "cipher"
 version = "0.4.4"
@@ -3677,7 +3665,7 @@ version = "0.1.0"
 dependencies = [
  "async-trait",
  "chrono",
- "chrono-tz 0.9.0",
+ "chrono-tz 0.10.4",
  "icalendar",
  "nuncio-core",
  "quick-xml 0.36.2",
@@ -4289,6 +4277,15 @@ dependencies = [
  "phf_shared 0.11.3",
 ]
 
+[[package]]
+name = "phf"
+version = "0.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "913273894cec178f401a31ec4b656318d95473527be05c0752cc41cdc32be8b7"
+dependencies = [
+ "phf_shared 0.12.1",
+]
+
 [[package]]
 name = "phf"
 version = "0.13.1"
@@ -4363,6 +4360,15 @@ dependencies = [
  "uncased",
 ]
 
+[[package]]
+name = "phf_shared"
+version = "0.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "06005508882fb681fd97892ecff4b7fd0fee13ef1aa569f8695dae7ab9099981"
+dependencies = [
+ "siphasher",
+]
+
 [[package]]
 name = "phf_shared"
 version = "0.13.1"
diff --git a/Cargo.toml b/Cargo.toml
index 3aec15d..ffacb1f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -65,7 +65,7 @@ tokio-stream = "0.1"
 futures = "0.3"
 wiremock = "0.6"
 icalendar = "0.15"
-chrono-tz = "0.9"
+chrono-tz = "0.10"
 rrule = "0.10"
 chrono = "0.4"
 reqwest = { version = "0.12", default-features = false, features = ["json", "rustls-tls"] }