diff --git a/Cargo.lock b/Cargo.lock
index ead9a69..7d136fd 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2768,6 +2768,7 @@ dependencies = [
  "async-trait",
  "base64 0.22.1",
  "chrono",
+ "chrono-tz",
  "derive_more 1.0.0",
  "futures-util",
  "quick-xml",
diff --git a/crates/caldav/Cargo.toml b/crates/caldav/Cargo.toml
index 6460d2c..8a139eb 100644
--- a/crates/caldav/Cargo.toml
+++ b/crates/caldav/Cargo.toml
@@ -25,6 +25,7 @@ url = { workspace = true }
 rustical_dav = { workspace = true }
 rustical_store = { workspace = true }
 chrono = { workspace = true }
+chrono-tz = { workspace = true }
 sha2 = { workspace = true }
 rustical_xml.workspace = true
 uuid.workspace = true