diff --git a/Cargo.lock b/Cargo.lock
index 7a9fb20764..0719e3d374 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -266,7 +266,19 @@ checksum = "aefc9be9f17185f4ebccae6575d342063f775924d57df0000edb1880c0fb7095"
 dependencies = [
  "bech32",
  "bitcoin_hashes",
- "secp256k1",
+ "secp256k1 0.19.0",
+ "serde",
+]
+
+[[package]]
+name = "bitcoin"
+version = "0.26.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1ec5f88a446d66e7474a3b8fa2e348320b574463fb78d799d90ba68f79f48e0e"
+dependencies = [
+ "bech32",
+ "bitcoin_hashes",
+ "secp256k1 0.20.1",
  "serde",
 ]
 
@@ -298,7 +310,7 @@ version = "0.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "76d488ec31e9cb6726c361be5160f7d2aaace89a0681acf1f476b8fada770b6e"
 dependencies = [
- "bitcoin",
+ "bitcoin 0.25.2",
  "hex 0.3.2",
  "serde",
  "serde_json",
@@ -416,7 +428,7 @@ version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dc2452b20fe06584a09b40428e16000a72a8f241493577565b5e89505ba017e7"
 dependencies = [
- "bitcoin",
+ "bitcoin 0.25.2",
  "byteorder",
  "hex-literal",
  "regex",
@@ -566,7 +578,7 @@ dependencies = [
  "num-bigint 0.3.1",
  "num-traits",
  "num256",
- "secp256k1",
+ "secp256k1 0.19.0",
  "serde",
  "serde-rlp",
  "serde_bytes",
@@ -601,7 +613,7 @@ dependencies = [
  "atty",
  "backoff",
  "base64 0.13.0",
- "bitcoin",
+ "bitcoin 0.26.0",
  "bitcoincore-rpc",
  "comit",
  "config",
@@ -662,7 +674,7 @@ dependencies = [
  "anyhow",
  "async-trait",
  "base64 0.13.0",
- "bitcoin",
+ "bitcoin 0.26.0",
  "bitcoincore-rpc",
  "blockchain_contracts",
  "byteorder",
@@ -2406,7 +2418,7 @@ dependencies = [
  "atty",
  "backoff",
  "base64 0.13.0",
- "bitcoin",
+ "bitcoin 0.26.0",
  "clarity",
  "comit",
  "config",
@@ -3564,9 +3576,19 @@ name = "secp256k1"
 version = "0.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c6179428c22c73ac0fbb7b5579a56353ce78ba29759b3b8575183336ea74cdfb"
+dependencies = [
+ "secp256k1-sys 0.3.0",
+ "serde",
+]
+
+[[package]]
+name = "secp256k1"
+version = "0.20.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "733b114f058f260c0af7591434eef4272ae1a8ec2751766d3cb89c6df8d5e450"
 dependencies = [
  "rand 0.6.5",
- "secp256k1-sys",
+ "secp256k1-sys 0.4.0",
  "serde",
 ]
 
@@ -3579,6 +3601,15 @@ dependencies = [
  "cc",
 ]
 
+[[package]]
+name = "secp256k1-sys"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "67e4b6455ee49f5901c8985b88f98fb0a0e1d90a6661f5a03f4888bd987dad29"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "security-framework"
 version = "0.4.4"
diff --git a/cnd/Cargo.toml b/cnd/Cargo.toml
index db339f1980..4c54213058 100644
--- a/cnd/Cargo.toml
+++ b/cnd/Cargo.toml
@@ -11,7 +11,7 @@ async-trait = "0.1"
 atty = "0.2"
 backoff = { version = "0.2.1", features = [ "tokio" ] }
 base64 = "0.13.0"
-bitcoin = { version = "0.25", features = [ "use-serde" ] }
+bitcoin = { version = "0.26", features = [ "use-serde" ] }
 comit = { path = "../comit" }
 config = { version = "0.10", features = [ "toml" ], default-features = false }
 conquer-once = "0.3.2"
@@ -59,7 +59,7 @@ void = "1"
 warp = { version = "0.2", default-features = false }
 
 [dev-dependencies]
-bitcoin = { version = "0.25", features = [ "rand" ] }
+bitcoin = { version = "0.26", features = [ "rand" ] }
 bitcoincore-rpc = "0.12.0"
 comit = { path = "../comit", features = [ "test" ] }
 proptest = "0.10.1"
diff --git a/comit/Cargo.toml b/comit/Cargo.toml
index c4217f432c..8702ad9ece 100644
--- a/comit/Cargo.toml
+++ b/comit/Cargo.toml
@@ -9,7 +9,7 @@ description = "Core components of the COMIT protocol"
 anyhow = "1"
 async-trait = "0.1"
 base64 = "0.13"
-bitcoin = { version = "0.25", features = [ "rand", "use-serde" ] }
+bitcoin = { version = "0.26", features = [ "rand", "use-serde" ] }
 blockchain_contracts = "0.4"
 byteorder = "1.4"
 conquer-once = "0.3"
diff --git a/nectar/Cargo.toml b/nectar/Cargo.toml
index ca85e1295e..94c34d19d7 100644
--- a/nectar/Cargo.toml
+++ b/nectar/Cargo.toml
@@ -9,7 +9,7 @@ anyhow = "1"
 async-trait = "0.1"
 atty = "0.2"
 backoff = { version = "0.2.1", features = [ "tokio" ] }
-bitcoin = { version = "0.25", features = [ "rand", "use-serde" ] }
+bitcoin = { version = "0.26", features = [ "rand", "use-serde" ] }
 clarity = "0.4"
 comit = { path = "../comit/" }
 config = { version = "0.10", default-features = false, features = [ "toml" ] }