diff --git a/Cargo.lock b/Cargo.lock
index 202e456e..406c50cc 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -257,7 +257,7 @@ checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
 
 [[package]]
 name = "candid"
-version = "0.10.2"
+version = "0.10.3"
 dependencies = [
  "anyhow",
  "bincode",
@@ -293,7 +293,7 @@ dependencies = [
 
 [[package]]
 name = "candid_parser"
-version = "0.1.2"
+version = "0.1.3"
 dependencies = [
  "anyhow",
  "arbitrary",
diff --git a/Changelog.md b/Changelog.md
index 66168338..ea541850 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,6 +1,21 @@
 
 # Changelog
 
+## 2023-01-30
+
+### Candid 0.10.3
+
+* Fix parser when converting `vec { number }` into `blob` type.
+
+### candid_parser 0.1.3
+
+* Add Typescript binding for init args.
+
+### Candid UI
+
+* Fix HTTP header.
+* Fix agent routing when running in remote environments.
+
 ## 2023-01-03
 
 ### Candid 0.10.2
diff --git a/rust/candid/Cargo.toml b/rust/candid/Cargo.toml
index 7bff5a0e..35874dc9 100644
--- a/rust/candid/Cargo.toml
+++ b/rust/candid/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "candid"
-version = "0.10.2"
+version = "0.10.3"
 edition = "2021"
 rust-version.workspace = true
 authors = ["DFINITY Team"]
diff --git a/rust/candid/src/types/value.rs b/rust/candid/src/types/value.rs
index 839b5a81..f622a29b 100644
--- a/rust/candid/src/types/value.rs
+++ b/rust/candid/src/types/value.rs
@@ -192,17 +192,22 @@ impl IDLValue {
             (_, TypeInner::Opt(_)) if !from_parser => IDLValue::None,
             (IDLValue::Blob(blob), ty) if ty.is_blob(env) => IDLValue::Blob(blob.to_vec()),
             (IDLValue::Vec(vec), ty) if ty.is_blob(env) => {
-                let blob = vec
-                    .iter()
-                    .filter_map(|x| match *x {
-                        IDLValue::Nat8(n) => Some(n),
-                        _ => None,
-                    })
-                    .collect();
+                let mut blob = Vec::with_capacity(vec.len());
+                for e in vec.iter() {
+                    match e {
+                        IDLValue::Nat8(n) => blob.push(*n),
+                        IDLValue::Number(n) => blob.push(n.parse::<u8>()?),
+                        _ => {
+                            return Err(Error::msg(format!(
+                                "type mismatch: {e} cannot be of type nat8"
+                            )))
+                        }
+                    }
+                }
                 IDLValue::Blob(blob)
             }
             (IDLValue::Vec(vec), TypeInner::Vec(ty)) => {
-                let mut res = Vec::new();
+                let mut res = Vec::with_capacity(vec.len());
                 for e in vec.iter() {
                     let v = e.annotate_type(from_parser, env, ty)?;
                     res.push(v);
diff --git a/rust/candid_parser/Cargo.toml b/rust/candid_parser/Cargo.toml
index 8c7578c8..82e898b2 100644
--- a/rust/candid_parser/Cargo.toml
+++ b/rust/candid_parser/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "candid_parser"
-version = "0.1.2"
+version = "0.1.3"
 edition = "2021"
 rust-version.workspace = true
 authors = ["DFINITY Team"]