diff --git a/Cargo.lock b/Cargo.lock
index ff25f11..72f0a94 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -59,15 +59,15 @@ checksum = "904dfeac50f3cdaba28fc6f57fdcddb75f49ed61346676a78c4ffe55877802fd"
 
 [[package]]
 name = "bech32"
-version = "0.9.1"
+version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d86b93f97252c47b41663388e6d155714a9d0c398b99f1005cbc5f978b29f445"
+checksum = "2dabbe35f96fb9507f7330793dc490461b2962659ac5d427181e451a623751d1"
 
 [[package]]
 name = "bitcoin"
-version = "0.29.2"
+version = "0.26.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0694ea59225b0c5f3cb405ff3f670e4828358ed26aec49dc352f730f0cb1a8a3"
+checksum = "1ec5f88a446d66e7474a3b8fa2e348320b574463fb78d799d90ba68f79f48e0e"
 dependencies = [
  "bech32",
  "bitcoin_hashes",
@@ -77,9 +77,9 @@ dependencies = [
 
 [[package]]
 name = "bitcoin_hashes"
-version = "0.11.0"
+version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "90064b8dee6815a6470d60bad07bbbaee885c0e12d04177138fa3291a01b7bc4"
+checksum = "0aaf87b776808e26ae93289bc7d025092b6d909c193f0cdee0b3a86e7bd3c776"
 dependencies = [
  "serde",
 ]
@@ -488,7 +488,7 @@ checksum = "c9495705279e7140bf035dde1f6e750c162df8b625267cd52cc44e0b156732c8"
 dependencies = [
  "cfg-if",
  "libc",
- "wasi 0.10.2+wasi-snapshot-preview1",
+ "wasi",
 ]
 
 [[package]]
@@ -825,24 +825,24 @@ name = "parking_lot"
 version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a4893845fa2ca272e647da5d0e46660a314ead9c2fdd9a883aabc32e481a8733"
-
 dependencies = [
+ "instant",
  "lock_api",
  "parking_lot_core",
 ]
 
 [[package]]
 name = "parking_lot_core"
-version = "0.9.4"
+version = "0.8.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4dc9e0dc2adc1c69d09143aff38d3d30c5c3f0df0dad82e6d25547af174ebec0"
+checksum = "fa7a782938e745763fe6907fc6ba86946d72f49fe7e21de074e08128a99fb018"
 dependencies = [
  "cfg-if",
  "instant",
  "libc",
  "redox_syscall",
  "smallvec",
- "windows-sys",
+ "winapi 0.3.9",
 ]
 
 [[package]]
@@ -895,9 +895,9 @@ dependencies = [
 
 [[package]]
 name = "redox_syscall"
-version = "0.2.16"
+version = "0.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fb5a58c1855b4b6819d59012155603f0b22ad30cad752600aadfcb695265519a"
+checksum = "94341e4e44e24f6b591b59e47a8a027df12e008d73fd5672dbea9cc22f4507d9"
 dependencies = [
  "bitflags",
 ]
@@ -944,20 +944,19 @@ checksum = "a3cf7c11c38cb994f3d40e8a8cde3bbd1f72a435e4c49e85d6553d8312306152"
 
 [[package]]
 name = "secp256k1"
-version = "0.24.3"
+version = "0.20.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6b1629c9c557ef9b293568b338dddfc8208c98a18c59d722a9d53f859d9c9b62"
+checksum = "733b114f058f260c0af7591434eef4272ae1a8ec2751766d3cb89c6df8d5e450"
 dependencies = [
- "bitcoin_hashes",
  "secp256k1-sys",
  "serde",
 ]
 
 [[package]]
 name = "secp256k1-sys"
-version = "0.6.1"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "83080e2c2fc1006e625be82e5d1eb6a43b7fd9578b617fcc55814daf286bba4b"
+checksum = "67e4b6455ee49f5901c8985b88f98fb0a0e1d90a6661f5a03f4888bd987dad29"
 dependencies = [
  "cc",
 ]
@@ -1182,10 +1181,10 @@ dependencies = [
  "memchr",
  "mio",
  "num_cpus",
+ "once_cell",
  "parking_lot",
  "pin-project-lite",
  "signal-hook-registry",
- "socket2",
  "tokio-macros",
  "winapi 0.3.9",
 ]
@@ -1490,4 +1489,4 @@ checksum = "d59cefebd0c892fa2dd6de581e937301d8552cb44489cdff035c6187cb63fa5e"
 dependencies = [
  "winapi 0.2.8",
  "winapi-build",
-]
+]
\ No newline at end of file