diff --git a/Cargo.toml b/Cargo.toml
index 0018633..99ae857 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -5,12 +5,12 @@ description = """The Paillier cryptosystem is a public key crytosystem based on
 Paillier ciphertexts are homorphic in that the can be added.
 """
 documentation = "https://docs.rs/paillier-rs"
-edition = "2018"
+edition = "2021"
 license = "Apache-2.0"
 name = "libpaillier"
 readme = "README.md"
 repository = "https://github.com/mikelodder7/paillier-rs"
-version = "0.4.0"
+version = "0.5.0"
 
 [features]
 default = ["openssl"]
@@ -20,21 +20,21 @@ rust = ["unknown_order/rust"]
 wasm = ["getrandom", "rand", "wasm-bindgen"]
 
 [dependencies]
-digest = "0.9"
+digest = "0.10"
 getrandom = { version = "0.2", features = ["js"], optional = true }
 rand = { version = "0.8", optional = true }
 serde = { version = "1.0", features = ["serde_derive"] }
 serde_bare = "0.5"
-unknown_order = { version = "0.5.0", default-features = false }
+unknown_order = { version = "0.6.0", default-features = false }
 wasm-bindgen = { version = "0.2", default-features = false, features = ["serde-serialize"], optional = true }
-zeroize = { version = "1.4", features = ["zeroize_derive"] }
+zeroize = { version = "1.5", features = ["zeroize_derive"] }
 
 [dev-dependencies]
-elliptic-curve = "0.9"
+elliptic-curve = "0.12"
 hex = "0.4"
-k256 = { version = "0.9", features = ["arithmetic", "zeroize"] }
+k256 = { version = "0.11", features = ["arithmetic"] }
 rand = "0.8"
 multibase = "0.9"
-sha2 = "0.9"
+sha2 = "0.10.6"
 serde_json = "1.0"
 unicase = "2.6"