diff --git a/rust/Cargo.lock b/rust/Cargo.lock
index 8cecda19..5d02eba7 100644
--- a/rust/Cargo.lock
+++ b/rust/Cargo.lock
@@ -1,5 +1,7 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+version = 3
+
 [[package]]
 name = "aho-corasick"
 version = "0.7.15"
@@ -48,12 +50,6 @@ version = "3.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2e8c087f005730276d1096a652e92a8bacee2e2472bcc9715a74d2bec38b5820"
 
-[[package]]
-name = "byteorder"
-version = "1.3.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "08c48aae112d48ed9f069b33538ea9e3e90aa263cfa3d1c24309612b1f7472de"
-
 [[package]]
 name = "cardano-serialization-lib"
 version = "7.1.0"
@@ -63,10 +59,8 @@ dependencies = [
  "cfg-if 1.0.0",
  "clear_on_drop",
  "cryptoxide",
- "curve25519-dalek",
  "digest",
  "ed25519-bip32",
- "ed25519-dalek",
  "hex",
  "js-sys",
  "linked-hash-map",
@@ -135,19 +129,6 @@ version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b8c4fdc86023bc33b265f256ce8205329125b86c38a8a96e243a6a705b7230ec"
 
-[[package]]
-name = "curve25519-dalek"
-version = "3.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "639891fde0dbea823fc3d798a0fdf9d2f9440a42d64a78ab3488b0ca025117b3"
-dependencies = [
- "byteorder",
- "digest",
- "rand_core 0.5.1",
- "subtle",
- "zeroize",
-]
-
 [[package]]
 name = "digest"
 version = "0.9.0"
@@ -157,15 +138,6 @@ dependencies = [
  "generic-array",
 ]
 
-[[package]]
-name = "ed25519"
-version = "1.0.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "37c66a534cbb46ab4ea03477eae19d5c22c01da8258030280b7bd9d8433fb6ef"
-dependencies = [
- "signature",
-]
-
 [[package]]
 name = "ed25519-bip32"
 version = "0.3.2"
@@ -175,20 +147,6 @@ dependencies = [
  "cryptoxide",
 ]
 
-[[package]]
-name = "ed25519-dalek"
-version = "1.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c762bae6dcaf24c4c84667b8579785430908723d5c889f469d76a41d59cc7a9d"
-dependencies = [
- "curve25519-dalek",
- "ed25519",
- "rand",
- "serde",
- "sha2",
- "zeroize",
-]
-
 [[package]]
 name = "env_logger"
 version = "0.7.1"
@@ -513,18 +471,6 @@ dependencies = [
  "opaque-debug",
 ]
 
-[[package]]
-name = "signature"
-version = "1.2.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "29f060a7d147e33490ec10da418795238fd7545bba241504d6b31a409f2e6210"
-
-[[package]]
-name = "subtle"
-version = "2.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "343f3f510c2915908f155e94f17220b19ccfacf2a64a2a5d8004f2c3e311e7fd"
-
 [[package]]
 name = "syn"
 version = "1.0.73"
@@ -536,18 +482,6 @@ dependencies = [
  "unicode-xid",
 ]
 
-[[package]]
-name = "synstructure"
-version = "0.12.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b834f2d66f734cb897113e34aaff2f1ab4719ca946f9a7358dba8f8064148701"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
- "unicode-xid",
-]
-
 [[package]]
 name = "thread_local"
 version = "1.0.1"
@@ -656,24 +590,3 @@ name = "winapi-x86_64-pc-windows-gnu"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
-
-[[package]]
-name = "zeroize"
-version = "1.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "05f33972566adbd2d3588b0491eb94b98b43695c4ef897903470ede4f3f5a28a"
-dependencies = [
- "zeroize_derive",
-]
-
-[[package]]
-name = "zeroize_derive"
-version = "1.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c3f369ddb18862aba61aa49bf31e74d29f0f162dec753063200e1dc084345d16"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
- "synstructure",
-]
diff --git a/rust/Cargo.toml b/rust/Cargo.toml
index a45983ac..66b75c74 100644
--- a/rust/Cargo.toml
+++ b/rust/Cargo.toml
@@ -17,8 +17,6 @@ crate-type = ["cdylib", "rlib"]
 [dependencies]
 cryptoxide = "0.3.2"
 cbor_event = "2.1.3"
-curve25519-dalek = "3.1.0"
-ed25519-dalek = "1.0.1"
 ed25519-bip32 = "0.3.2"
 sha2 = "^0.9"
 digest = "^0.9"