diff --git a/Cargo.toml b/Cargo.toml
index f268dfb30..dead0ad42 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -28,7 +28,7 @@ async-tar = { version = "0.4", default-features=false }
 backtrace = "0.3"
 base64 = "0.13"
 bitflags = "1.3"
-chrono = "0.4"
+chrono = { version = "0.4", default-features=false, features = ["clock", "std"] }
 dirs = { version = "4", optional=true }
 email = { git = "https://github.com/deltachat/rust-email", branch = "master" }
 encoded-words = { git = "https://github.com/async-email/encoded-words", branch="master" }