diff --git a/Cargo.lock b/Cargo.lock
index 37f18f2cd2..4acddb266e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2244,6 +2244,15 @@ dependencies = [
  "signature 1.6.4",
 ]
 
+[[package]]
+name = "ed25519"
+version = "2.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5fb04eee5d9d907f29e80ee6b0e78f7e2c82342c63e3580d8c4f69d9d5aad963"
+dependencies = [
+ "signature 2.1.0",
+]
+
 [[package]]
 name = "ed25519-dalek"
 version = "1.0.1"
@@ -2251,7 +2260,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c762bae6dcaf24c4c84667b8579785430908723d5c889f469d76a41d59cc7a9d"
 dependencies = [
  "curve25519-dalek 3.2.0",
- "ed25519",
+ "ed25519 1.5.3",
  "rand 0.7.3",
  "serde",
  "sha2 0.9.9",
@@ -11283,7 +11292,7 @@ name = "sp-io"
 version = "23.0.0"
 dependencies = [
  "bytes",
- "ed25519",
+ "ed25519 2.2.1",
  "ed25519-dalek",
  "futures",
  "libsecp256k1",
diff --git a/primitives/io/Cargo.toml b/primitives/io/Cargo.toml
index 9491f8a179..5982c2d39d 100644
--- a/primitives/io/Cargo.toml
+++ b/primitives/io/Cargo.toml
@@ -36,7 +36,7 @@ tracing-core = { version = "0.1.28", default-features = false}
 # Required for backwards compatibility reason, but only used for verifying when `UseDalekExt` is set.
 ed25519-dalek = { version = "1.0.1", default-features = false, optional = true }
 # Force the usage of ed25519, this is being used in `ed25519-dalek`.
-ed25519 = { version = "1.5.2", optional = true }
+ed25519 = { version = "2.2.1", optional = true }
 
 [build-dependencies]
 rustversion = "1.0.6"