diff --git a/Cargo.toml b/Cargo.toml
index 211dd41..0338213 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,8 +11,8 @@ version = "0.1.4"
 members = ["http-service-hyper", "http-service-mock"]
 
 [dependencies]
-bytes = "0.4.11"
-http = "0.1.13"
+bytes = "0.4.12"
+http = "0.1.17"
 
 [dependencies.futures-preview]
-version = "0.3.0-alpha.13"
+version = "0.3.0-alpha.14"
diff --git a/http-service-hyper/Cargo.toml b/http-service-hyper/Cargo.toml
index 128d2f5..62123c2 100644
--- a/http-service-hyper/Cargo.toml
+++ b/http-service-hyper/Cargo.toml
@@ -14,8 +14,8 @@ version = "0.1.0"
 [dependencies]
 http = "0.1"
 http-service = "0.1.4"
-hyper = "0.12.24"
+hyper = "0.12.27"
 
 [dependencies.futures-preview]
 features = ["compat"]
-version = "0.3.0-alpha.13"
+version = "0.3.0-alpha.14"
diff --git a/http-service-mock/Cargo.toml b/http-service-mock/Cargo.toml
index 1e88baf..99faf14 100644
--- a/http-service-mock/Cargo.toml
+++ b/http-service-mock/Cargo.toml
@@ -14,4 +14,4 @@ version = "0.1.0"
 http-service = "0.1.4"
 
 [dependencies.futures-preview]
-version = "0.3.0-alpha.13"
\ No newline at end of file
+version = "0.3.0-alpha.14"
\ No newline at end of file
diff --git a/src/lib.rs b/src/lib.rs
index 6ea4d97..499465b 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -10,7 +10,7 @@ use futures::{
     future,
     prelude::*,
     stream::{self, StreamObj},
-    task::Waker,
+    task::Context,
     Poll,
 };
 
@@ -62,8 +62,8 @@ impl Unpin for Body {}
 
 impl Stream for Body {
     type Item = Result<Bytes, std::io::Error>;
-    fn poll_next(mut self: Pin<&mut Self>, waker: &Waker) -> Poll<Option<Self::Item>> {
-        Pin::new(&mut self.stream).poll_next(waker)
+    fn poll_next(mut self: Pin<&mut Self>, cx: &mut Context) -> Poll<Option<Self::Item>> {
+        Pin::new(&mut self.stream).poll_next(cx)
     }
 }