diff --git a/Cargo.lock b/Cargo.lock
index be37790..c4b7dde 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,5 +1,7 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+version = 3
+
 [[package]]
 name = "actix"
 version = "0.7.9"
@@ -17,7 +19,7 @@ dependencies = [
  "log",
  "parking_lot 0.7.1",
  "smallvec 0.6.14",
- "tokio",
+ "tokio 0.1.22",
  "tokio-codec",
  "tokio-executor",
  "tokio-io",
@@ -190,7 +192,7 @@ dependencies = [
  "net2",
  "num_cpus",
  "slab",
- "tokio",
+ "tokio 0.1.22",
  "tokio-codec",
  "tokio-current-thread",
  "tokio-io",
@@ -963,7 +965,7 @@ dependencies = [
  "serde_json",
  "tempfile",
  "time",
- "tokio",
+ "tokio 1.8.4",
  "tokio-process",
  "tokio-signal",
  "walkdir",
@@ -1743,6 +1745,12 @@ version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d4fd5641d01c8f18a23da7b6fe29298ff4b55afcccdf78973b24cf3175fee32e"
 
+[[package]]
+name = "pin-project-lite"
+version = "0.2.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e0a7ae3ac2f1173085d398531c705756c94a4c56843785df85a60c1a0afac116"
+
 [[package]]
 name = "ppv-lite86"
 version = "0.2.10"
@@ -2415,6 +2423,16 @@ dependencies = [
  "tokio-uds",
 ]
 
+[[package]]
+name = "tokio"
+version = "1.8.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "50dae83881bc9b0403dd5b44ea9deed3e939856cc8722d5be37f0d6e5c6d53dd"
+dependencies = [
+ "autocfg 1.0.1",
+ "pin-project-lite",
+]
+
 [[package]]
 name = "tokio-codec"
 version = "0.1.2"
@@ -2715,7 +2733,7 @@ dependencies = [
  "lru-cache",
  "resolv-conf",
  "smallvec 0.6.14",
- "tokio",
+ "tokio 0.1.22",
  "trust-dns-proto 0.6.3",
 ]
 
diff --git a/Cargo.toml b/Cargo.toml
index d14c4b2..e6fc3b5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -49,7 +49,7 @@ serde_derive = "1.0"
 serde_json = "1.0"
 tempfile = "3.0"
 time = "0.1"
-tokio = "0.1"
+tokio = "1.8"
 tokio-process = "0.2"
 tokio-signal = "0.2"
 walkdir = "2"