Update Cargo.toml

Author: RobinLinus

Cargo.toml

@@ -14,7 +14,7 @@ proc-macro = true
 
 [dependencies]
 # bitcoin = "0.31.1"
-bitcoin = { git = "https://github.com/stevenroose/rust-bitcoin", rev = "639d552ef0080a68b1ea883298aa30c450d9ff0d" }
+bitcoin = { git = "https://github.com/rust-bitcoin/rust-bitcoin", branch = "bitvm" }
 quote = "1.0.23"
 proc-macro-error = "1.0.4"
 lazy_static = "1.4.0"