diff --git a/CHANGELOG.md b/CHANGELOG.md
index bb5224860..02c6a3c51 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+## [1.0.0-rc.3](https://github.com/iotaledger/inx-chronicle/compare/v1.0.0-rc.2...v1.0.0-rc.3) (2024-01-22)
+
+### Miscellaneous Chores
+
+* **deps:** update `iota-sdk` to fix validation bug
+
 ## [1.0.0-rc.2](https://github.com/iotaledger/inx-chronicle/compare/v1.0.0-rc.1...v1.0.0-rc.2) (2023-09-12)
 
 
diff --git a/Cargo.lock b/Cargo.lock
index bfae29eb6..b2fe947bc 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -481,7 +481,7 @@ dependencies = [
 
 [[package]]
 name = "chronicle"
-version = "1.0.0-rc.2"
+version = "1.0.0-rc.3"
 dependencies = [
  "async-trait",
  "auth-helper",
diff --git a/Cargo.toml b/Cargo.toml
index 95d2f7797..cc612498c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "chronicle"
-version = "1.0.0-rc.2"
+version = "1.0.0-rc.3"
 authors = ["IOTA Stiftung"]
 edition = "2021"
 description = "IOTA permanode implemented as an IOTA Node Extension (INX)."
diff --git a/src/model/block/payload/transaction/unlock.rs b/src/model/block/payload/transaction/unlock.rs
index abe02aeb8..78b188f73 100644
--- a/src/model/block/payload/transaction/unlock.rs
+++ b/src/model/block/payload/transaction/unlock.rs
@@ -52,9 +52,7 @@ impl TryFrom<Unlock> for iota::Unlock {
 
     fn try_from(value: Unlock) -> Result<Self, Self::Error> {
         Ok(match value {
-            Unlock::Signature { signature } => {
-                iota::Unlock::Signature(iota::SignatureUnlock::new(signature.try_into()?))
-            }
+            Unlock::Signature { signature } => iota::Unlock::Signature(iota::SignatureUnlock::new(signature.into())),
             Unlock::Reference { index } => iota::Unlock::Reference(iota::ReferenceUnlock::new(index)?),
             Unlock::Alias { index } => iota::Unlock::Alias(iota::AliasUnlock::new(index)?),
             Unlock::Nft { index } => iota::Unlock::Nft(iota::NftUnlock::new(index)?),
diff --git a/src/model/signature.rs b/src/model/signature.rs
index 20dbe711d..2864bcbf0 100644
--- a/src/model/signature.rs
+++ b/src/model/signature.rs
@@ -32,22 +32,20 @@ impl From<&iota::Signature> for Signature {
     fn from(value: &iota::Signature) -> Self {
         match value {
             iota::Signature::Ed25519(signature) => Self::Ed25519 {
-                public_key: signature.public_key().to_bytes(),
+                public_key: signature.public_key_bytes().to_bytes(),
                 signature: signature.signature().to_bytes(),
             },
         }
     }
 }
 
-impl TryFrom<Signature> for iota::Signature {
-    type Error = iota_sdk::types::block::Error;
-
-    fn try_from(value: Signature) -> Result<Self, Self::Error> {
-        Ok(match value {
+impl From<Signature> for iota::Signature {
+    fn from(value: Signature) -> Self {
+        match value {
             Signature::Ed25519 { public_key, signature } => {
-                iota::Ed25519Signature::try_from_bytes(public_key, signature)?.into()
+                iota::Ed25519Signature::from_bytes(public_key, signature).into()
             }
-        })
+        }
     }
 }