diff --git a/http-signature-normalization-actix/Cargo.toml b/http-signature-normalization-actix/Cargo.toml
index f226432..280355f 100644
--- a/http-signature-normalization-actix/Cargo.toml
+++ b/http-signature-normalization-actix/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "http-signature-normalization-actix"
 description = "An HTTP Signatures library that leaves the signing to you"
-version = "0.4.1"
+version = "0.5.0-beta.1"
 authors = ["asonix <asonix@asonix.dog>"]
 license-file = "LICENSE"
 readme = "README.md"
@@ -25,8 +25,8 @@ name = "client"
 required-features = ["sha-2"]
 
 [dependencies]
-actix-web = { version = "3.0.1", default-features = false }
-awc = { version = "2.0.0", default-features = false }
+actix-web = { version = "4.0.0-beta.1", default-features = false }
+awc = { version = "3.0.0-beta.1", default-features = false }
 base64 = { version = "0.12", optional = true }
 bytes = "0.5.4"
 chrono = "0.4.6"
@@ -38,5 +38,5 @@ sha3 = { version = "0.9", optional = true }
 thiserror = "1.0"
 
 [dev-dependencies]
-actix-rt = "1.1.1"
+actix-rt = "=2.0.0-beta.1"
 pretty_env_logger = "0.4"
diff --git a/http-signature-normalization-actix/README.md b/http-signature-normalization-actix/README.md
index 73b1efc..e581ac0 100644
--- a/http-signature-normalization-actix/README.md
+++ b/http-signature-normalization-actix/README.md
@@ -13,10 +13,10 @@ This crate provides extensions the ClientRequest type from Actix Web, and provid
 
 #### First, add this crate to your dependencies
 ```toml
-actix-rt = "1.1.1"
-actix-web = "3.0.2"
+actix-rt = "=2.0.0-beta.1"
+actix-web = "4.0.0-beta.1"
 thiserror = "0.1"
-http-signature-normalization-actix = { version = "0.4.1", default-features = false, features = ["sha-2"] }
+http-signature-normalization-actix = { version = "0.5.0-beta.1", default-features = false, features = ["sha-2"] }
 sha2 = "0.9"
 ```
 
diff --git a/http-signature-normalization-actix/src/digest/middleware.rs b/http-signature-normalization-actix/src/digest/middleware.rs
index 9a25e1d..c6269c9 100644
--- a/http-signature-normalization-actix/src/digest/middleware.rs
+++ b/http-signature-normalization-actix/src/digest/middleware.rs
@@ -7,15 +7,10 @@ use actix_web::{
     http::{header::HeaderValue, StatusCode},
     web, FromRequest, HttpMessage, HttpRequest, HttpResponse, ResponseError,
 };
-use bytes::Bytes;
-use futures::{
-    channel::mpsc,
-    future::{err, ok, ready, Ready},
-    Stream, StreamExt,
-};
+use futures::{channel::mpsc, Stream, StreamExt};
 use log::{debug, warn};
 use std::{
-    future::Future,
+    future::{ready, Future, Ready},
     pin::Pin,
     task::{Context, Poll},
 };
@@ -85,15 +80,13 @@ impl FromRequest for DigestVerified {
     }
 }
 
-impl<T, S, B> Transform<S> for VerifyDigest<T>
+impl<T, S, B> Transform<S, ServiceRequest> for VerifyDigest<T>
 where
     T: DigestVerify + Clone + Send + 'static,
-    S: Service<Request = ServiceRequest, Response = ServiceResponse<B>, Error = actix_web::Error>
-        + 'static,
+    S: Service<ServiceRequest, Response = ServiceResponse<B>, Error = actix_web::Error> + 'static,
     S::Error: 'static,
     B: MessageBody + 'static,
 {
-    type Request = ServiceRequest;
     type Response = ServiceResponse<B>;
     type Error = actix_web::Error;
     type Transform = VerifyMiddleware<T, S>;
@@ -101,21 +94,19 @@ where
     type Future = Ready<Result<Self::Transform, Self::InitError>>;
 
     fn new_transform(&self, service: S) -> Self::Future {
-        ok(VerifyMiddleware(service, self.0, self.1.clone()))
+        ready(Ok(VerifyMiddleware(service, self.0, self.1.clone())))
     }
 }
 
 type FutResult<T, E> = dyn Future<Output = Result<T, E>>;
 
-impl<T, S, B> Service for VerifyMiddleware<T, S>
+impl<T, S, B> Service<ServiceRequest> for VerifyMiddleware<T, S>
 where
     T: DigestVerify + Clone + Send + 'static,
-    S: Service<Request = ServiceRequest, Response = ServiceResponse<B>, Error = actix_web::Error>
-        + 'static,
+    S: Service<ServiceRequest, Response = ServiceResponse<B>, Error = actix_web::Error> + 'static,
     S::Error: 'static,
     B: MessageBody + 'static,
 {
-    type Request = ServiceRequest;
     type Response = ServiceResponse<B>;
     type Error = actix_web::Error;
     type Future = Pin<Box<FutResult<Self::Response, Self::Error>>>;
@@ -130,7 +121,7 @@ where
                 Some(vec) => vec,
                 None => {
                     warn!("Digest header could not be parsed");
-                    return Box::pin(err(VerifyError.into()));
+                    return Box::pin(ready(Err(VerifyError.into())));
                 }
             };
             let payload = req.take_payload();
@@ -138,7 +129,7 @@ where
             let (tx, rx) = mpsc::channel(1);
             let f1 = verify_payload(vec, self.2.clone(), payload, tx);
 
-            let payload: Pin<Box<dyn Stream<Item = Result<Bytes, PayloadError>> + 'static>> =
+            let payload: Pin<Box<dyn Stream<Item = Result<web::Bytes, PayloadError>> + 'static>> =
                 Box::pin(rx.map(Ok));
             req.set_payload(payload.into());
             req.extensions_mut().insert(DigestVerified);
@@ -150,7 +141,7 @@ where
                 f2.await
             })
         } else if self.1 {
-            Box::pin(err(VerifyError.into()))
+            Box::pin(ready(Err(VerifyError.into())))
         } else {
             Box::pin(self.0.call(req))
         }
@@ -161,7 +152,7 @@ async fn verify_payload<T>(
     vec: Vec<DigestPart>,
     mut verify_digest: T,
     mut payload: Payload,
-    mut tx: mpsc::Sender<Bytes>,
+    mut tx: mpsc::Sender<web::Bytes>,
 ) -> Result<(), actix_web::Error>
 where
     T: DigestVerify + Clone + Send + 'static,
diff --git a/http-signature-normalization-actix/src/middleware.rs b/http-signature-normalization-actix/src/middleware.rs
index 4ee709c..d41ef48 100644
--- a/http-signature-normalization-actix/src/middleware.rs
+++ b/http-signature-normalization-actix/src/middleware.rs
@@ -6,10 +6,9 @@ use actix_web::{
     http::StatusCode,
     Error, FromRequest, HttpMessage, HttpRequest, HttpResponse, ResponseError,
 };
-use futures::future::{err, ok, ready, Ready};
 use log::{debug, warn};
 use std::{
-    future::Future,
+    future::{ready, Future, Ready},
     pin::Pin,
     task::{Context, Poll},
 };
@@ -93,7 +92,7 @@ impl<T, S, B> VerifyMiddleware<T, S>
 where
     T: SignatureVerify + 'static,
     T::Future: 'static,
-    S: Service<Request = ServiceRequest, Response = ServiceResponse<B>, Error = Error> + 'static,
+    S: Service<ServiceRequest, Response = ServiceResponse<B>, Error = Error> + 'static,
     B: MessageBody + 'static,
 {
     fn handle(
@@ -110,23 +109,23 @@ where
             Ok(unverified) => unverified,
             Err(PrepareVerifyError::Expired) => {
                 warn!("Header is expired");
-                return Box::pin(err(VerifyError.into()));
+                return Box::pin(ready(Err(VerifyError.into())));
             }
             Err(PrepareVerifyError::Missing) => {
                 debug!("Header is missing");
-                return Box::pin(err(VerifyError.into()));
+                return Box::pin(ready(Err(VerifyError.into())));
             }
             Err(PrepareVerifyError::ParseField(field)) => {
                 debug!("Failed to parse field {}", field);
-                return Box::pin(err(VerifyError.into()));
+                return Box::pin(ready(Err(VerifyError.into())));
             }
             Err(PrepareVerifyError::Header(e)) => {
                 debug!("Failed to parse header {}", e);
-                return Box::pin(err(VerifyError.into()));
+                return Box::pin(ready(Err(VerifyError.into())));
             }
             Err(PrepareVerifyError::Required(req)) => {
                 debug!("Missing required headers, {:?}", req);
-                return Box::pin(err(VerifyError.into()));
+                return Box::pin(ready(Err(VerifyError.into())));
             }
         };
 
@@ -183,15 +182,13 @@ impl FromRequest for SignatureVerified {
     }
 }
 
-impl<T, S, B> Transform<S> for VerifySignature<T>
+impl<T, S, B> Transform<S, ServiceRequest> for VerifySignature<T>
 where
     T: SignatureVerify + Clone + 'static,
-    S: Service<Request = ServiceRequest, Response = ServiceResponse<B>, Error = actix_web::Error>
-        + 'static,
+    S: Service<ServiceRequest, Response = ServiceResponse<B>, Error = actix_web::Error> + 'static,
     S::Error: 'static,
     B: MessageBody + 'static,
 {
-    type Request = ServiceRequest;
     type Response = ServiceResponse<B>;
     type Error = actix_web::Error;
     type Transform = VerifyMiddleware<T, S>;
@@ -199,26 +196,24 @@ where
     type Future = Ready<Result<Self::Transform, Self::InitError>>;
 
     fn new_transform(&self, service: S) -> Self::Future {
-        ok(VerifyMiddleware(
+        ready(Ok(VerifyMiddleware(
             service,
             self.1.clone(),
             self.2,
             self.3,
             self.0.clone(),
-        ))
+        )))
     }
 }
 
 type FutResult<T, E> = dyn Future<Output = Result<T, E>>;
-impl<T, S, B> Service for VerifyMiddleware<T, S>
+impl<T, S, B> Service<ServiceRequest> for VerifyMiddleware<T, S>
 where
     T: SignatureVerify + Clone + 'static,
-    S: Service<Request = ServiceRequest, Response = ServiceResponse<B>, Error = actix_web::Error>
-        + 'static,
+    S: Service<ServiceRequest, Response = ServiceResponse<B>, Error = actix_web::Error> + 'static,
     S::Error: 'static,
     B: MessageBody + 'static,
 {
-    type Request = ServiceRequest;
     type Response = ServiceResponse<B>;
     type Error = actix_web::Error;
     type Future = Pin<Box<FutResult<Self::Response, Self::Error>>>;
@@ -241,13 +236,13 @@ where
             }
 
             debug!("Authorization or Signature headers are missing");
-            Box::pin(err(VerifyError.into()))
+            Box::pin(ready(Err(VerifyError.into())))
         } else if self.3 {
             debug!("Headers are missing but Optional is true, continuing");
             Box::pin(self.0.call(req))
         } else {
             debug!("Authorization or Signature headers are missing");
-            Box::pin(err(VerifyError.into()))
+            Box::pin(ready(Err(VerifyError.into())))
         }
     }
 }