diff --git a/Cargo.toml b/Cargo.toml
index f32b593bd1b50de04db616b3f2c5057863479f39..ed868539539bbcd2b9428c4396b049087982cb50 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,6 +13,7 @@ maplit = "1.0.2"
 derive_more = "0.99.2"
 
 # runtime
+bincode = "1.2.1"
 serde = { version = "1.0.112", features = ["derive"] }
 getrandom = "0.1.14" # tiny crate. used to guess controller-id
 take_mut = "0.2.2"
@@ -21,8 +22,9 @@ indexmap = "1.3.0" # hashsets/hashmaps with efficient arbitrary element removal
 # network
 integer-encoding = "1.0.7"
 byteorder = "1.3.2"
-mio = "0.6.21" # migrate to mio v0.7.0 when it stabilizes
+mio = "0.6.21"
 mio-extras = "2.0.6"
+mio07 = { version = "0.7.0", package = "mio", features = ["tcp", "os-poll"] }
 
 # protocol
 # id-arena = "2.2.1"