diff --git a/Cargo.toml b/Cargo.toml
index 9224e79..412bc3a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,9 +11,9 @@ keywords = ["voronoi", "sweepline", "geometry"]
 
 [dependencies]
 num = "^0.3.1"
-ordered-float = "^2.0.1"
+ordered-float = "^2.1.1"
 fnv = "^1.0.7"
-rb_tree = "^0.3.1"
+rb_tree = "^0.3.2"
 vec_map = "^0.8.2"
 num-bigint = "^0.3.1"
 num-traits = "^0.2.14"