diff --git a/chameleon/Cargo.toml b/chameleon/Cargo.toml
index bbd1cb7..1c6e8a2 100644
--- a/chameleon/Cargo.toml
+++ b/chameleon/Cargo.toml
@@ -8,6 +8,6 @@ graphql = { path = "../graphql" }
 honey-badger = { path = "../honey-badger" }
 
 [dev-dependencies]
-bitcoin = { version = "0.30.1" }
+bitcoin = { version = "0.31.1" }
 ctor = "0.2.0"
 simplelog = { version ="0.12.0", features = ["test"] }
diff --git a/crow/Cargo.toml b/crow/Cargo.toml
index 6da47e8..44a10b0 100644
--- a/crow/Cargo.toml
+++ b/crow/Cargo.toml
@@ -10,4 +10,4 @@ isocountry = { version = "0.3.2" }
 isolanguage-1 = { version = "0.2.2" }
 
 [dev-dependencies]
-bitcoin = { version = "0.30.1" }
+bitcoin = { version = "0.31.1" }
diff --git a/squirrel/Cargo.toml b/squirrel/Cargo.toml
index 2942d8d..3f43cef 100644
--- a/squirrel/Cargo.toml
+++ b/squirrel/Cargo.toml
@@ -11,7 +11,7 @@ honey-badger = { path = "../honey-badger" }
 bdk = { version = "0.29.0", features = ["keys-bip39"] }
 
 [dev-dependencies]
-bitcoin = { version = "0.29.2" }
+bitcoin = { version = "0.31.1" }
 ctor = "0.2.0"
 rand = "0.8.5"
 simplelog = { version ="0.12.0", features = ["test"] }