diff --git a/util/fastcdc.rs b/util/fastcdc.rs
index f220b9128..3cd572a57 100644
--- a/util/fastcdc.rs
+++ b/util/fastcdc.rs
@@ -4,7 +4,7 @@
 // This implementation is heavily based on:
 // https://github.com/nlfiedler/fastcdc-rs/blob/1e804fe27444e37b2c4f93d540f861d170c8a257/src/lib.rs
 
-use bytes::BytesMut;
+use bytes::{Bytes, BytesMut};
 use tokio_util::codec::Decoder;
 
 struct State {
@@ -80,7 +80,7 @@ impl FastCDC {
 }
 
 impl Decoder for FastCDC {
-    type Item = BytesMut;
+    type Item = Bytes;
     type Error = std::io::Error;
 
     fn decode(&mut self, buf: &mut BytesMut) -> Result<Option<Self::Item>, Self::Error> {
@@ -120,14 +120,14 @@ impl Decoder for FastCDC {
                 split_point,
                 self.max_size
             );
-            return Ok(Some(buf.split_to(split_point)));
+            return Ok(Some(buf.split_to(split_point).freeze()));
         }
         self.state.position = split_point;
         if self.state.position == 0 {
             self.state.position = buf.len();
         }
 
-        return Ok(None);
+        Ok(None)
     }
 
     fn decode_eof(&mut self, buf: &mut BytesMut) -> Result<Option<Self::Item>, Self::Error> {
@@ -140,7 +140,7 @@ impl Decoder for FastCDC {
                     // If our buffer is empty we don't have any more data.
                     return Ok(None);
                 }
-                Ok(Some(buf.split()))
+                Ok(Some(buf.split().freeze()))
             }
         }
     }
diff --git a/util/tests/fastcdc_test.rs b/util/tests/fastcdc_test.rs
index adb18dd16..bbf813291 100644
--- a/util/tests/fastcdc_test.rs
+++ b/util/tests/fastcdc_test.rs
@@ -6,7 +6,7 @@ use std::collections::{HashMap, HashSet};
 use std::io::Cursor;
 use std::marker::Unpin;
 
-use bytes::BytesMut;
+use bytes::Bytes;
 use futures::stream::StreamExt;
 use rand::{rngs::SmallRng, Rng, SeedableRng};
 use sha2::{Digest, Sha256};
@@ -108,7 +108,7 @@ mod fastcdc_tests {
         let fast_cdc = FastCDC::new(1024, 2048, 4096);
         let left_frames = {
             let mut frame_reader = FramedRead::new(Cursor::new(&rand_data), fast_cdc.clone());
-            let frames: Vec<BytesMut> = get_frames(&mut frame_reader).await?;
+            let frames: Vec<Bytes> = get_frames(&mut frame_reader).await?;
 
             let mut frames_map = HashMap::new();
             let mut pos = 0;
@@ -129,7 +129,7 @@ mod fastcdc_tests {
 
         let mut right_frames = {
             let mut frame_reader = FramedRead::new(Cursor::new(&rand_data), fast_cdc.clone());
-            let frames: Vec<BytesMut> = get_frames(&mut frame_reader).await?;
+            let frames: Vec<Bytes> = get_frames(&mut frame_reader).await?;
 
             let mut frames_map = HashMap::new();
             let mut pos = 0;