diff --git a/Cargo.toml b/Cargo.toml
index 0b50182..3bb088f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,7 +10,7 @@ license = "MIT"
 
 [dependencies]
 variance = "0.1"
-crossbeam = "0.2"
+crossbeam = "0.4"
 scopeguard = "0.1"
 
 [dev-dependencies]
diff --git a/src/lib.rs b/src/lib.rs
index 778c96b..a0fdfff 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -13,7 +13,7 @@ extern crate crossbeam;
 extern crate scopeguard;
 
 use variance::InvariantLifetime as Id;
-use crossbeam::sync::MsQueue;
+use crossbeam::queue::MsQueue;
 
 use std::{thread, mem};
 use std::sync::atomic::{AtomicBool, AtomicUsize, Ordering};
@@ -322,7 +322,7 @@ impl<'scope> Scope<'scope> {
     pub fn zoom<'smaller, F, R>(&self, scheduler: F) -> R
     where F: FnOnce(&Scope<'smaller>) -> R,
           'scope: 'smaller {
-        let scope = unsafe { self.refine::<'smaller>() };
+        let scope = unsafe { self.refine() };
 
         // Join the scope either on completion of the scheduler or panic.
         defer!(scope.join());