diff --git a/src/delay.rs b/src/delay.rs
index 65349040c03faa2f0de16349f02ae7999755612e..d744751da9ec01e743ae9358d0a3bf1319a6666b 100644
--- a/src/delay.rs
+++ b/src/delay.rs
@@ -7,7 +7,7 @@
 use std::convert::TryFrom;
 
 use minidom::Element;
-use chrono::prelude::*;
+use chrono::{DateTime, FixedOffset};
 
 use error::Error;
 use jid::Jid;
@@ -58,8 +58,9 @@ impl Into<Element> for Delay {
 
 #[cfg(test)]
 mod tests {
-    use std::str::FromStr;
     use super::*;
+    use std::str::FromStr;
+    use chrono::{Datelike, Timelike};
 
     #[test]
     fn test_simple() {
diff --git a/src/idle.rs b/src/idle.rs
index ba13bd8954d660d0c8740aec392475d3c271eb62..82009668bfbeed21044f8a7ef0b61f47222d2fd3 100644
--- a/src/idle.rs
+++ b/src/idle.rs
@@ -7,7 +7,7 @@
 use std::convert::TryFrom;
 
 use minidom::Element;
-use chrono::prelude::*;
+use chrono::{DateTime, FixedOffset};
 
 use error::Error;