diff --git a/Cargo.lock b/Cargo.lock
index cb5323a5f..c05bbd7fb 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -140,7 +140,7 @@ dependencies = [
  "conduit-proxy-controller-grpc 0.3.0",
  "conduit-proxy-router 0.3.0",
  "convert 0.3.0",
- "domain 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "domain 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "env_logger 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.18 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures-mpsc-lossy 0.3.0",
@@ -241,12 +241,12 @@ dependencies = [
 
 [[package]]
 name = "domain"
-version = "0.2.2"
+version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "byteorder 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.18 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.3.20 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-core 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -592,7 +592,7 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "abstract-ns 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "domain 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "domain 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.18 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-core 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -771,15 +771,6 @@ dependencies = [
  "proc-macro2 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "rand"
-version = "0.3.20"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "rand"
 version = "0.4.2"
@@ -1261,7 +1252,7 @@ dependencies = [
 "checksum crc 1.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "bd5d02c0aac6bd68393ed69e00bbc2457f3e89075c6349db7189618dc4ddc1d7"
 "checksum curl 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)" = "b70fd6394677d3c0e239ff4be6f2b3176e171ffd1c23ffdc541e78dea2b8bb5e"
 "checksum curl-sys 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "f46e49c7125131f5afaded06944d6888b55cbdf8eba05dae73c954019b907961"
-"checksum domain 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "c1850bf2c3c3349e1dba2aa214d86cf9edaa057a09ce46b1a02d5c07d5da5e65"
+"checksum domain 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "ed223144c5eaf3fc1406b4ccc7f360564218df8eec11cbfa03282d405a751f64"
 "checksum either 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "740178ddf48b1a9e878e6d6509a1442a2d42fd2928aae8e7a6f8a36fb01981b3"
 "checksum env_logger 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "3ddf21e73e016298f5cb37d6ef8e8da8e39f91f9ec8b0df44b7deb16a9f8cd5b"
 "checksum env_logger 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)" = "f15f0b172cb4f52ed5dbf47f774a387cd2315d1bf7894ab5af9b083ae27efa5a"
@@ -1323,7 +1314,6 @@ dependencies = [
 "checksum quickcheck 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "13f4460d3daa06eb1c4b9a3c55dffe65cb030dd70cf1bfdd482532f48ab24f74"
 "checksum quote 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6e920b65c65f10b2ae65c831a81a073a89edd28c7cce89475bff467ab4167a"
 "checksum quote 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "1eca14c727ad12702eb4b6bfb5a232287dcf8385cb8ca83a3eeaf6519c44c408"
-"checksum rand 0.3.20 (registry+https://github.com/rust-lang/crates.io-index)" = "512870020642bb8c221bf68baa1b2573da814f6ccfe5c9699b1c303047abe9b1"
 "checksum rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "eba5f8cb59cc50ed56be8880a5c7b496bfd9bd26394e176bc67884094145c2c5"
 "checksum redox_syscall 0.1.37 (registry+https://github.com/rust-lang/crates.io-index)" = "0d92eecebad22b767915e4d529f89f28ee96dbbf5a4810d2b844373f136417fd"
 "checksum redox_termios 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7e891cfe48e9100a70a3b6eb652fef28920c117d366339687bd5576160db0f76"
diff --git a/proxy/Cargo.toml b/proxy/Cargo.toml
index 0c006797f..ce8c070da 100644
--- a/proxy/Cargo.toml
+++ b/proxy/Cargo.toml
@@ -16,7 +16,7 @@ futures-mpsc-lossy              = { path = "./futures-mpsc-lossy" }
 conduit-proxy-router            = { path = "./router" }
 
 bytes = "0.4"
-domain = "0.2.2"
+domain = "0.2.3"
 env_logger = { version = "0.5", default-features = false }
 futures = "0.1"
 h2 = "0.1"