diff --git a/Cargo.toml b/Cargo.toml
index 31d66aa..fcd67da 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,12 +7,13 @@ edition = "2018"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-heapless = { version = "0.5.5" }
+delog = "0.1.0-alpha.3"
+heapless = "0.5.6"
+heapless-bytes = "0.1.1"
 
 # Components
 iso7816 = { path = "../iso7816" }
-delog = "0.1.0-alpha.3"
-interchange = {path = "../interchange"}
+interchange = "0.1.0"
 
 # Testing
 serial_test = { version = "*", optional = true }
@@ -27,6 +28,3 @@ log-info = []
 log-debug = []
 log-warn = []
 log-error = []
-
-[patch.crates-io]
-heapless = { git = "https://github.com/nicolas-solokeys/heapless", branch = "bytebuf" }
diff --git a/src/dispatch.rs b/src/dispatch.rs
index d33199b..dd9774e 100644
--- a/src/dispatch.rs
+++ b/src/dispatch.rs
@@ -87,7 +87,7 @@ impl ApduDispatch
 {
     fn apdu_type(apdu: &Command) -> RequestType {
         if apdu.instruction() == Instruction::Select && (apdu.p1 & 0x04) != 0 {
-            RequestType::Select(Aid::from_slice(apdu.data()).unwrap())
+            RequestType::Select(Aid::try_from_slice(apdu.data()).unwrap())
         } else if apdu.instruction() == Instruction::GetResponse {
             RequestType::GetResponse
         } else {
@@ -289,7 +289,7 @@ impl ApduDispatch
 
                     let to_send = &res[..boundary];
                     let remaining = &res[boundary..];
-                    let mut message = response::Data::from_slice(to_send).unwrap();
+                    let mut message = response::Data::try_from_slice(to_send).unwrap();
                     let return_code = if remaining.len() > 255 {
                         // XX = 00 indicates more than 255 bytes of data
                         0x6100u16
@@ -308,7 +308,7 @@ impl ApduDispatch
                     } else {
                         info!("Still {} bytes in response buffer", remaining.len());
                         (
-                            RawApduBuffer::Response(response::Data::from_slice(remaining).unwrap()),
+                            RawApduBuffer::Response(response::Data::try_from_slice(remaining).unwrap()),
                             message
                         )
                     }
diff --git a/src/lib.rs b/src/lib.rs
index fcbed39..80645eb 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -9,3 +9,4 @@ pub mod dispatch;
 pub mod types;
 pub use iso7816;
 pub use heapless;
+pub use heapless_bytes;
diff --git a/tests/dispatch.rs b/tests/dispatch.rs
index e616859..755a1ab 100644
--- a/tests/dispatch.rs
+++ b/tests/dispatch.rs
@@ -15,7 +15,7 @@ use iso7816::{
 };
 use interchange::Interchange;
 
-use heapless::ByteBuf;
+use heapless_bytes::Bytes;
 
 #[macro_use]
 extern crate serial_test;
@@ -60,7 +60,7 @@ impl Applet for TestApp1 {
         println!("TestApp1::call");
         match apdu.instruction().into() {
             0x10 => {
-                let mut buf = ByteBuf::new();
+                let mut buf = Bytes::new();
                 // Just echo 5x 0's for the request apdu header
                 buf.push(0).unwrap();
                 buf.push(0).unwrap();
@@ -72,7 +72,7 @@ impl Applet for TestApp1 {
             }
             // For measuring the stack burden of dispatch
             0x15 => {
-                let mut buf = ByteBuf::new();
+                let mut buf = Bytes::new();
                 let addr = (&buf as *const iso7816::response::Data ) as u32;
                 buf.extend_from_slice(&addr.to_be_bytes()).unwrap();
                 Ok(AppletResponse::Respond(buf))
@@ -113,7 +113,7 @@ impl Applet for TestApp2 {
         println!("TestApp2::call");
         match apdu.instruction().into() {
             0x20 => {
-                let mut buf = ByteBuf::new();
+                let mut buf = Bytes::new();
                 buf.push(0).unwrap();
                 buf.push(0).unwrap();
                 buf.push(0).unwrap();