diff --git a/Cargo.toml b/Cargo.toml
index c80ee8e9e..2756d22b7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,4 +10,4 @@ documentation = "https://georust.github.io/rust-geo/"
 keywords = ["gis", "geo", "geography", "geospatial"]
 
 [dependencies]
-num = "0.1"
+num-traits = "0.1"
diff --git a/src/algorithm/area.rs b/src/algorithm/area.rs
index 1164c84e7..cf0ba2b98 100644
--- a/src/algorithm/area.rs
+++ b/src/algorithm/area.rs
@@ -1,4 +1,4 @@
-use num::Float;
+use num_traits::Float;
 use types::{LineString, Polygon, MultiPolygon, Bbox};
 
 /// Calculation of the area.
@@ -59,7 +59,7 @@ impl<T> Area<T> for Bbox<T>
 
 #[cfg(test)]
 mod test {
-    use num::Float;
+    use num_traits::Float;
     use types::{Coordinate, Point, LineString, Polygon, MultiPolygon, Bbox};
     use algorithm::area::Area;
     use test_helpers::within_epsilon;
diff --git a/src/algorithm/boundingbox.rs b/src/algorithm/boundingbox.rs
index 306e54838..2b0d86d9b 100644
--- a/src/algorithm/boundingbox.rs
+++ b/src/algorithm/boundingbox.rs
@@ -1,4 +1,4 @@
-use num::Float;
+use num_traits::Float;
 
 use types::{Bbox, Point, MultiPoint, LineString, MultiLineString, Polygon, MultiPolygon};
 
diff --git a/src/algorithm/centroid.rs b/src/algorithm/centroid.rs
index aeedb62f3..aff651a4a 100644
--- a/src/algorithm/centroid.rs
+++ b/src/algorithm/centroid.rs
@@ -1,4 +1,4 @@
-use num::{Float, FromPrimitive};
+use num_traits::{Float, FromPrimitive};
 
 use types::{Point, LineString, Polygon, MultiPolygon, Bbox};
 use algorithm::area::Area;
diff --git a/src/algorithm/contains.rs b/src/algorithm/contains.rs
index 99db76f75..952fdaf3d 100644
--- a/src/algorithm/contains.rs
+++ b/src/algorithm/contains.rs
@@ -1,4 +1,4 @@
-use num::{Float, ToPrimitive};
+use num_traits::{Float, ToPrimitive};
 
 use types::{COORD_PRECISION, Point, LineString, Polygon, MultiPolygon, Bbox};
 use algorithm::intersects::Intersects;
diff --git a/src/algorithm/distance.rs b/src/algorithm/distance.rs
index 6b98672f5..b6302915f 100644
--- a/src/algorithm/distance.rs
+++ b/src/algorithm/distance.rs
@@ -1,9 +1,9 @@
 use std::cmp::Ordering;
 use std::collections::BinaryHeap;
-use num::{Float, ToPrimitive};
+use num_traits::{Float, ToPrimitive};
 use types::{Point, LineString, Polygon};
 use algorithm::contains::Contains;
-use num::pow::pow;
+use num_traits::pow::pow;
 
 /// Returns the distance between two geometries.
 
diff --git a/src/algorithm/intersects.rs b/src/algorithm/intersects.rs
index 10f2efabc..845cc1519 100644
--- a/src/algorithm/intersects.rs
+++ b/src/algorithm/intersects.rs
@@ -1,4 +1,4 @@
-use num::Float;
+use num_traits::Float;
 use types::{LineString, Polygon, Bbox, Point};
 use algorithm::contains::Contains;
 
diff --git a/src/algorithm/length.rs b/src/algorithm/length.rs
index 2d445383c..67dcc9e42 100644
--- a/src/algorithm/length.rs
+++ b/src/algorithm/length.rs
@@ -1,4 +1,4 @@
-use num::Float;
+use num_traits::Float;
 
 use types::{LineString, MultiLineString};
 use algorithm::distance::Distance;
diff --git a/src/algorithm/simplify.rs b/src/algorithm/simplify.rs
index 79026fb61..a541bae5d 100644
--- a/src/algorithm/simplify.rs
+++ b/src/algorithm/simplify.rs
@@ -1,4 +1,4 @@
-use num::Float;
+use num_traits::Float;
 use types::{Point, LineString};
 use algorithm::distance::Distance;
 
diff --git a/src/algorithm/simplifyvw.rs b/src/algorithm/simplifyvw.rs
index 63936a102..f18cbd93a 100644
--- a/src/algorithm/simplifyvw.rs
+++ b/src/algorithm/simplifyvw.rs
@@ -1,6 +1,6 @@
 use std::cmp::Ordering;
 use std::collections::BinaryHeap;
-use num::Float;
+use num_traits::Float;
 use types::{Point, LineString};
 
 // A helper struct for `visvalingam`, defined out here because
diff --git a/src/lib.rs b/src/lib.rs
index 7b4ab8137..14a2882d5 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,4 +1,4 @@
-extern crate num;
+extern crate num_traits;
 
 pub use traits::ToGeo;
 pub use types::*;
diff --git a/src/test_helpers.rs b/src/test_helpers.rs
index 39052e4e4..def424633 100644
--- a/src/test_helpers.rs
+++ b/src/test_helpers.rs
@@ -1,4 +1,4 @@
-use num::Float;
+use num_traits::Float;
 
 pub fn within_epsilon<F: Float>(x: F, y: F, epsilon: F) -> bool {
     let a = x.abs();
diff --git a/src/traits.rs b/src/traits.rs
index ae0eb8434..79e538462 100644
--- a/src/traits.rs
+++ b/src/traits.rs
@@ -1,6 +1,6 @@
 pub use ::Geometry;
 
-use num::Float;
+use num_traits::Float;
 
 pub trait ToGeo<T: Float>
 {
diff --git a/src/types.rs b/src/types.rs
index 693f01c9c..597ad5f98 100644
--- a/src/types.rs
+++ b/src/types.rs
@@ -3,7 +3,7 @@ use std::ops::AddAssign;
 use std::ops::Neg;
 use std::ops::Sub;
 
-use num::{Float, ToPrimitive};
+use num_traits::{Float, ToPrimitive};
 
 pub static COORD_PRECISION: f32 = 1e-1; // 0.1m