diff --git a/Cargo.lock b/Cargo.lock
index 1538bed2fb5..da6ac2b91e7 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -10,7 +10,6 @@ dependencies = [
  "bincode",
  "brillig",
  "flate2",
- "rmp-serde",
  "serde",
  "serde_json",
  "strum",
@@ -3122,28 +3121,6 @@ dependencies = [
  "syn 1.0.109",
 ]
 
-[[package]]
-name = "rmp"
-version = "0.8.12"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7f9860a6cc38ed1da53456442089b4dfa35e7cedaa326df63017af88385e6b20"
-dependencies = [
- "byteorder",
- "num-traits",
- "paste",
-]
-
-[[package]]
-name = "rmp-serde"
-version = "1.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bffea85eea980d8a74453e5d02a8d93028f3c34725de143085a844ebe953258a"
-dependencies = [
- "byteorder",
- "rmp",
- "serde",
-]
-
 [[package]]
 name = "rust-embed"
 version = "6.8.1"
diff --git a/acvm-repo/acir/Cargo.toml b/acvm-repo/acir/Cargo.toml
index f4bdd72e25a..a7c55b3d8ac 100644
--- a/acvm-repo/acir/Cargo.toml
+++ b/acvm-repo/acir/Cargo.toml
@@ -17,7 +17,6 @@ acir_field.workspace = true
 brillig.workspace = true
 serde.workspace = true
 thiserror.workspace = true
-rmp-serde = { version = "1.1.0", optional = true }
 flate2 = "1.0.24"
 bincode.workspace = true
 
@@ -30,4 +29,3 @@ strum_macros = "0.24"
 default = ["bn254"]
 bn254 = ["acir_field/bn254", "brillig/bn254"]
 bls12_381 = ["acir_field/bls12_381", "brillig/bls12_381"]
-serialize-messagepack = ["rmp-serde"]
diff --git a/acvm-repo/acir/src/circuit/mod.rs b/acvm-repo/acir/src/circuit/mod.rs
index d03240af2c3..eef5a5fb6bc 100644
--- a/acvm-repo/acir/src/circuit/mod.rs
+++ b/acvm-repo/acir/src/circuit/mod.rs
@@ -125,24 +125,6 @@ impl Circuit {
         PublicInputs(public_inputs)
     }
 
-    #[cfg(feature = "serialize-messagepack")]
-    pub fn write<W: std::io::Write>(&self, writer: W) -> std::io::Result<()> {
-        let buf = rmp_serde::to_vec(&self).unwrap();
-        let mut deflater = flate2::write::DeflateEncoder::new(writer, Compression::best());
-        deflater.write_all(&buf).unwrap();
-
-        Ok(())
-    }
-    #[cfg(feature = "serialize-messagepack")]
-    pub fn read<R: std::io::Read>(reader: R) -> std::io::Result<Self> {
-        let mut deflater = flate2::read::DeflateDecoder::new(reader);
-        let mut buf_d = Vec::new();
-        deflater.read_to_end(&mut buf_d).unwrap();
-        let circuit = rmp_serde::from_slice(buf_d.as_slice()).unwrap();
-        Ok(circuit)
-    }
-
-    #[cfg(not(feature = "serialize-messagepack"))]
     pub fn write<W: std::io::Write>(&self, writer: W) -> std::io::Result<()> {
         let buf = bincode::serialize(&self).unwrap();
         let mut encoder = flate2::write::GzEncoder::new(writer, Compression::default());
@@ -151,7 +133,6 @@ impl Circuit {
         Ok(())
     }
 
-    #[cfg(not(feature = "serialize-messagepack"))]
     pub fn read<R: std::io::Read>(reader: R) -> std::io::Result<Self> {
         let mut gz_decoder = flate2::read::GzDecoder::new(reader);
         let mut buf_d = Vec::new();
diff --git a/acvm-repo/acir/src/native_types/witness_map.rs b/acvm-repo/acir/src/native_types/witness_map.rs
index 400e0a8ca1a..1734b0b907f 100644
--- a/acvm-repo/acir/src/native_types/witness_map.rs
+++ b/acvm-repo/acir/src/native_types/witness_map.rs
@@ -13,20 +13,6 @@ use thiserror::Error;
 
 use crate::native_types::Witness;
 
-#[cfg(feature = "serialize-messagepack")]
-#[derive(Debug, Error)]
-enum SerializationError {
-    #[error(transparent)]
-    MsgpackEncode(#[from] rmp_serde::encode::Error),
-
-    #[error(transparent)]
-    MsgpackDecode(#[from] rmp_serde::decode::Error),
-
-    #[error(transparent)]
-    Deflate(#[from] std::io::Error),
-}
-
-#[cfg(not(feature = "serialize-messagepack"))]
 #[derive(Debug, Error)]
 enum SerializationError {
     #[error(transparent)]
@@ -92,20 +78,6 @@ impl From<BTreeMap<Witness, FieldElement>> for WitnessMap {
     }
 }
 
-#[cfg(feature = "serialize-messagepack")]
-impl TryFrom<WitnessMap> for Vec<u8> {
-    type Error = WitnessMapError;
-
-    fn try_from(val: WitnessMap) -> Result<Self, Self::Error> {
-        let buf = rmp_serde::to_vec(&val).map_err(|err| WitnessMapError(err.into()))?;
-        let mut deflater = flate2::write::DeflateEncoder::new(buf.as_slice(), Compression::best());
-        let mut buf_c = Vec::new();
-        deflater.read_to_end(&mut buf_c).map_err(|err| WitnessMapError(err.into()))?;
-        Ok(buf_c)
-    }
-}
-
-#[cfg(not(feature = "serialize-messagepack"))]
 impl TryFrom<WitnessMap> for Vec<u8> {
     type Error = WitnessMapError;
 
@@ -118,21 +90,6 @@ impl TryFrom<WitnessMap> for Vec<u8> {
     }
 }
 
-#[cfg(feature = "serialize-messagepack")]
-impl TryFrom<&[u8]> for WitnessMap {
-    type Error = WitnessMapError;
-
-    fn try_from(bytes: &[u8]) -> Result<Self, Self::Error> {
-        let mut deflater = flate2::bufread::DeflateDecoder::new(bytes);
-        let mut buf_d = Vec::new();
-        deflater.read_to_end(&mut buf_d).map_err(|err| WitnessMapError(err.into()))?;
-        let witness_map =
-            rmp_serde::from_slice(buf_d.as_slice()).map_err(|err| WitnessMapError(err.into()))?;
-        Ok(Self(witness_map))
-    }
-}
-
-#[cfg(not(feature = "serialize-messagepack"))]
 impl TryFrom<&[u8]> for WitnessMap {
     type Error = WitnessMapError;