-[patch.crates-io]
-# Rust-Secp256k1 PR 282. This patch should be dropped once that is merged.
-secp256k1 = { git = 'https://github.com/TheBlueMatt/rust-secp256k1', rev = '32767e0e21e8861701ff7d5957613169d67ff1f8' }
-# bitcoin_hashes PR 111 (without the top commit). This patch should be dropped once that is merged.
-bitcoin_hashes = { git = 'https://github.com/TheBlueMatt/bitcoin_hashes', rev = 'c90d26339a3e34fd2f942aa80298f410cc41b743' }
+afl = { version = "0.12", optional = true }
+honggfuzz = { version = "0.5", optional = true, default-features = false }
+libfuzzer-sys = { version = "0.4", optional = true }