Prep for release.

Author: wolfmcnally

Cargo.toml

@@ -21,7 +21,7 @@ crc32fast = "^1.3.2"
 chacha20poly1305 = "^0.10.1"
 # secp256k1 = {version = "^0.27.0", features = ["bitcoin_hashes"]}
 #secp256k1 = "^0.27.0"
-secp256k1 = { git = "https://github.com/rust-bitcoin/rust-secp256k1/", branch = "master" }
+secp256k1 = { version = "^0.27.0", git = "https://github.com/rust-bitcoin/rust-secp256k1/", branch = "master" }
 x25519-dalek = {version = "2.0.0-rc.2", features = ["static_secrets"]}
 thiserror = "^1.0.48"
 hex = "^0.4.3"