diff --git a/Cargo.toml b/Cargo.toml
index 08ae5ee..a53450a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "libipld"
-version = "3.4.1"
+version = "3.5.0"
 edition = "2021"
 license = "MIT"
 description = "Python binding to the Rust IPLD library"
@@ -17,6 +17,7 @@ pyo3 = { version = "0.28.3", features = ["generate-import-lib", "anyhow"] }
 python3-dll-a = "0.2.15"
 anyhow = "1.0.102"
 cid = "0.11.3"
+ipld-core = "0.4"
 cbor4ii = { version = "1.2.2" }
 
 [build-dependencies]
diff --git a/src/car.rs b/src/car.rs
index 410d1ee..4be0750 100644
--- a/src/car.rs
+++ b/src/car.rs
@@ -71,7 +71,7 @@ pub fn decode_car<'py>(py: Python<'py>, data: &[u8]) -> PyResult<(Py<PyAny>, Bou
         // `&[u8]` is itself an `io::Read`, so we hand it to `Cid::read_bytes`
         // directly and recover the consumed length from the slice shrink.
         let mut slice: &[u8] = cid_bytes_before;
-        let cid_result = ::cid::Cid::read_bytes(&mut slice);
+        let cid_result = ::ipld_core::cid::Cid::read_bytes(&mut slice);
         let Ok(cid) = cid_result else {
             return Err(value_error(
                 "Failed to read CID of block",
diff --git a/src/cid.rs b/src/cid.rs
index 834d6db..5fa06c6 100644
--- a/src/cid.rs
+++ b/src/cid.rs
@@ -27,11 +27,11 @@ pub(crate) fn looks_like_cid(bytes: &[u8]) -> bool {
     bytes.len() == 34 && bytes[0] == 0x12 && bytes[1] == 0x20
 }
 
-pub(crate) fn extract_cid(data: &Bound<PyAny>) -> PyResult<::cid::Cid> {
+    pub(crate) fn extract_cid(data: &Bound<PyAny>) -> PyResult<::ipld_core::cid::Cid> {
     let cid = if let Ok(s) = data.cast::<PyString>() {
-        ::cid::Cid::try_from(s.to_str()?)
+        ::ipld_core::cid::Cid::try_from(s.to_str()?)
     } else {
-        ::cid::Cid::try_from(extract_bytes(data)?)
+        ::ipld_core::cid::Cid::try_from(extract_bytes(data)?)
     };
 
     if let Ok(cid) = cid {
diff --git a/src/cid/de.rs b/src/cid/de.rs
index f0e06ee..6e7136f 100644
--- a/src/cid/de.rs
+++ b/src/cid/de.rs
@@ -3,7 +3,7 @@ use pyo3::types::*;
 
 use crate::cid::extract_cid;
 
-fn hash_to_pydict<'py>(py: Python<'py>, cid: &::cid::Cid) -> PyResult<Bound<'py, PyDict>> {
+fn hash_to_pydict<'py>(py: Python<'py>, cid: &::ipld_core::cid::Cid) -> PyResult<Bound<'py, PyDict>> {
     let hash = cid.hash();
     let dict_obj = PyDict::new(py);
 
@@ -14,7 +14,7 @@ fn hash_to_pydict<'py>(py: Python<'py>, cid: &::cid::Cid) -> PyResult<Bound<'py,
     Ok(dict_obj)
 }
 
-fn to_pydict<'py>(py: Python<'py>, cid: &::cid::Cid) -> PyResult<Bound<'py, PyDict>> {
+fn to_pydict<'py>(py: Python<'py>, cid: &::ipld_core::cid::Cid) -> PyResult<Bound<'py, PyDict>> {
     let dict_obj = PyDict::new(py);
 
     dict_obj.set_item("version", cid.version() as u64)?;
diff --git a/src/dag_cbor/de.rs b/src/dag_cbor/de.rs
index 5522ac7..ac8833f 100644
--- a/src/dag_cbor/de.rs
+++ b/src/dag_cbor/de.rs
@@ -143,7 +143,7 @@ where
             }
 
             let cid_without_prefix = &cid[1..];
-            if ::cid::Cid::try_from(cid_without_prefix).is_err() {
+            if ::ipld_core::cid::Cid::try_from(cid_without_prefix).is_err() {
                 return Err(anyhow!("Invalid CID"));
             }
 
diff --git a/src/dag_cbor/ser.rs b/src/dag_cbor/ser.rs
index 280408d..506f3e9 100644
--- a/src/dag_cbor/ser.rs
+++ b/src/dag_cbor/ser.rs
@@ -133,7 +133,7 @@ where
         if tp == &raw mut ffi::PyBytes_Type {
             let b = obj.cast_unchecked::<PyBytes>();
             let bytes = b.as_bytes();
-            if looks_like_cid(bytes) && ::cid::Cid::try_from(bytes).is_ok() {
+            if looks_like_cid(bytes) && ::ipld_core::cid::Cid::try_from(bytes).is_ok() {
                 // by providing custom encoding we avoid extra allocation
                 types::Tag(42, PrefixedCidBytes(bytes)).encode(w)?;
             } else {
@@ -187,7 +187,7 @@ where
         Ok(())
     } else if let Ok(b) = obj.cast::<PyBytes>() {
         let bytes = b.as_bytes();
-        if looks_like_cid(bytes) && ::cid::Cid::try_from(bytes).is_ok() {
+        if looks_like_cid(bytes) && ::ipld_core::cid::Cid::try_from(bytes).is_ok() {
             types::Tag(42, PrefixedCidBytes(bytes)).encode(w)?;
         } else {
             types::Bytes(bytes).encode(w)?;
diff --git a/src/multibase/de.rs b/src/multibase/de.rs
index de78e1a..51bab1f 100644
--- a/src/multibase/de.rs
+++ b/src/multibase/de.rs
@@ -5,7 +5,7 @@ use crate::error::value_error;
 
 #[pyfunction]
 pub fn decode_multibase<'py>(py: Python<'py>, data: &str) -> PyResult<(char, Bound<'py, PyBytes>)> {
-    let base = ::cid::multibase::decode(data);
+    let base = ::ipld_core::cid::multibase::decode(data);
     if let Ok((base, data)) = base {
         Ok((base.code(), PyBytes::new(py, &data)))
     } else {
diff --git a/src/multibase/ser.rs b/src/multibase/ser.rs
index 9004eb2..30f9571 100644
--- a/src/multibase/ser.rs
+++ b/src/multibase/ser.rs
@@ -6,9 +6,9 @@ use crate::error::value_error;
 #[pyfunction]
 pub fn encode_multibase(code: char, data: &Bound<PyAny>) -> PyResult<String> {
     let data_bytes = extract_bytes(data)?;
-    let base = ::cid::multibase::Base::from_code(code);
+    let base = ::ipld_core::cid::multibase::Base::from_code(code);
     if let Ok(base) = base {
-        Ok(::cid::multibase::encode(base, data_bytes))
+        Ok(::ipld_core::cid::multibase::encode(base, data_bytes))
     } else {
         Err(value_error(
             "Failed to encode multibase",