diff --git a/dns-cache/Cargo.lock b/dns-cache/Cargo.lock
index e4134a7..585ddaf 100644
--- a/dns-cache/Cargo.lock
+++ b/dns-cache/Cargo.lock
@@ -1828,16 +1828,16 @@ checksum = "cda74da7e1a664f795bb1f8a87ec406fb89a02522cf6e50620d016add6dbbf5c"
 
 [[package]]
 name = "tokio"
-version = "1.19.2"
+version = "1.20.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c51a52ed6686dd62c320f9b89299e9dfb46f730c7a48e635c19f21d116cb1439"
+checksum = "eb78f30e4b41e98ca4cce5acb51168a033839a7af9e42b380355808e14e98ee0"
 dependencies = [
+ "autocfg",
  "bytes",
  "libc",
  "memchr",
  "mio 0.8.3",
  "num_cpus",
- "once_cell",
  "pin-project-lite",
  "socket2",
  "tokio-macros",
diff --git a/dns-cache/Cargo.toml b/dns-cache/Cargo.toml
index 272de14..8fb7842 100644
--- a/dns-cache/Cargo.toml
+++ b/dns-cache/Cargo.toml
@@ -12,7 +12,7 @@ async-trait = "0.1"
 trust-dns-server = "0.21"
 trust-dns-proto = "0.21"
 trust-dns-client = "0.21"
-tokio = { version = "1.19", features = ["macros", "io-util", "rt", "rt-multi-thread", "net", "sync"] }
+tokio = { version = "1.20", features = ["macros", "io-util", "rt", "rt-multi-thread", "net", "sync"] }
 log = "0.4"
 pretty_env_logger = "0.4"
 futures = "0.3"