diff --git a/Cargo.toml b/Cargo.toml
index c64cb6a..0157039 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,8 +3,3 @@ name = "zcash-mmr"
 version = "0.1.0"
 authors = ["NikVolf <nikvolf@gmail.com>"]
 edition = "2018"
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
-[dependencies]
-owning_ref = "0.3"
\ No newline at end of file
diff --git a/src/lib.rs b/src/lib.rs
index 726e473..f164295 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -2,8 +2,6 @@
 //!
 //! To be used in zebra and via FFI bindings in zcashd
 
-extern crate owning_ref;
-
 mod tree;
 
 #[repr(C)]