diff --git a/Cargo.toml b/Cargo.toml
index 120e3bfa..6e3fd32e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -53,7 +53,7 @@ optional = true
 default-features = false
 
 [dependencies.kdtree]
-version = "0.7.0"
+version = "0.8.1"
 optional = true
 
 [dev-dependencies]