diff --git a/lib/rs/Cargo.toml b/lib/rs/Cargo.toml
index 1ef524e..844355f 100644
--- a/lib/rs/Cargo.toml
+++ b/lib/rs/Cargo.toml
@@ -16,7 +16,7 @@
 byteorder = "1.3"
 integer-encoding = "3.0.3"
 log = {version = "0.4", optional = true}
-ordered-float = "2.0"
+ordered-float = "3.0"
 threadpool = {version = "1.7", optional = true}
 
 [features]