diff --git a/Cargo.toml b/Cargo.toml
index bf3596e..88a5651 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -45,9 +45,9 @@ members = [
 futures-core-preview = "=0.3.0-alpha.18"
 futures-sink-preview = "=0.3.0-alpha.18"
 futures-util-preview = "=0.3.0-alpha.18"
-tokio-codec = "=0.2.0-alpha.4"
-tokio-io = { version = "=0.2.0-alpha.4", features = ["util"] }
-tokio-sync = "=0.2.0-alpha.4"
+tokio-codec = "=0.2.0-alpha.5"
+tokio-io = { version = "=0.2.0-alpha.5", features = ["util"] }
+tokio-sync = "=0.2.0-alpha.5"
 bytes = "0.4.7"
 http = "0.1.8"
 log = "0.4.1"
@@ -69,7 +69,7 @@ serde = "1.0.0"
 serde_json = "1.0.0"
 
 # Akamai example
-tokio = "=0.2.0-alpha.4"
+tokio = "=0.2.0-alpha.5"
 env_logger = { version = "0.5.3", default-features = false }
 rustls = "0.12"
 tokio-rustls = "0.5.0"
diff --git a/tests/h2-fuzz/Cargo.toml b/tests/h2-fuzz/Cargo.toml
index f53652c..565a453 100644
--- a/tests/h2-fuzz/Cargo.toml
+++ b/tests/h2-fuzz/Cargo.toml
@@ -12,4 +12,4 @@ env_logger = { version = "0.5.3", default-features = false }
 futures-preview = "=0.3.0-alpha.18"
 honggfuzz = "0.5"
 http = "0.1.3"
-tokio = "=0.2.0-alpha.4"
+tokio = "=0.2.0-alpha.5"
diff --git a/tests/h2-support/Cargo.toml b/tests/h2-support/Cargo.toml
index 65248ff..5b708b5 100644
--- a/tests/h2-support/Cargo.toml
+++ b/tests/h2-support/Cargo.toml
@@ -12,4 +12,4 @@ env_logger = "0.5.9"
 futures-preview = "=0.3.0-alpha.18"
 http = "0.1.5"
 string = "0.2"
-tokio = "=0.2.0-alpha.4"
+tokio = "=0.2.0-alpha.5"
diff --git a/tests/h2-tests/Cargo.toml b/tests/h2-tests/Cargo.toml
index 6495aa3..6d75942 100644
--- a/tests/h2-tests/Cargo.toml
+++ b/tests/h2-tests/Cargo.toml
@@ -11,4 +11,4 @@ edition = "2018"
 h2-support = { path = "../h2-support" }
 log = "0.4.1"
 futures-preview = "=0.3.0-alpha.18"
-tokio = "=0.2.0-alpha.4"
+tokio = "=0.2.0-alpha.5"