diff --git a/Cargo.lock b/Cargo.lock
index e2340e3d..33f810e0 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4253,7 +4253,6 @@ dependencies = [
  "rand 0.8.5",
  "secp256k1",
  "serde",
- "serde_json",
  "sha2",
  "thiserror 2.0.18",
 ]
diff --git a/key_protocol/Cargo.toml b/key_protocol/Cargo.toml
index 0f16e21b..0a5e9e9a 100644
--- a/key_protocol/Cargo.toml
+++ b/key_protocol/Cargo.toml
@@ -23,6 +23,3 @@ bip39.workspace = true
 hmac-sha512.workspace = true
 thiserror.workspace = true
 itertools.workspace = true
-
-[dev-dependencies]
-serde_json.workspace = true