diff --git a/Cargo.lock b/Cargo.lock
index c30967c..59ecab0 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -59,7 +59,7 @@ dependencies = [
  "tokio-rustls",
  "trust-dns-proto 0.18.0-alpha.2",
  "trust-dns-resolver 0.18.0-alpha.2",
- "webpki",
+ "webpki 0.21.3",
 ]
 
 [[package]]
@@ -175,7 +175,7 @@ dependencies = [
  "log",
  "rustls",
  "tokio-rustls",
- "webpki",
+ "webpki 0.21.3",
  "webpki-roots 0.17.0",
 ]
 
@@ -380,9 +380,9 @@ checksum = "0e4cec68f03f32e44924783795810fa50a7035d8c8ebe78580ad7e6c703fba38"
 
 [[package]]
 name = "cc"
-version = "1.0.59"
+version = "1.0.72"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "66120af515773fb005778dc07c261bd201ec8ce50bd6e7144c927753fe013381"
+checksum = "22a9137b95ea06864e018375b72adfb7db6e6f68cfc8df5a04d00288050485ee"
 
 [[package]]
 name = "cfg-if"
@@ -1174,9 +1174,9 @@ checksum = "1ab52be62400ca80aa00285d25253d7f7c437b7375c4de678f5405d3afe82ca5"
 
 [[package]]
 name = "once_cell"
-version = "1.4.1"
+version = "1.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "260e51e7efe62b592207e9e13a68e43692a7a279171d6ba57abd208bf23645ad"
+checksum = "da32515d9f6e6e489d7bc9d84c71b060db7247dc035bbe44eac88cf87486d8d5"
 
 [[package]]
 name = "openssl"
@@ -1445,9 +1445,9 @@ dependencies = [
 
 [[package]]
 name = "ring"
-version = "0.16.15"
+version = "0.16.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "952cd6b98c85bbc30efa1ba5783b8abf12fec8b3287ffa52605b9432313e34e4"
+checksum = "3053cf52e236a3ed746dfc745aa9cacf1b791d846bdaf412f60a8d7d6e17c8fc"
 dependencies = [
  "cc",
  "libc",
@@ -1474,7 +1474,7 @@ dependencies = [
  "log",
  "ring",
  "sct",
- "webpki",
+ "webpki 0.21.3",
 ]
 
 [[package]]
@@ -1760,7 +1760,7 @@ dependencies = [
  "futures-core",
  "rustls",
  "tokio",
- "webpki",
+ "webpki 0.21.3",
 ]
 
 [[package]]
@@ -2111,7 +2111,7 @@ dependencies = [
  "serde_json",
  "tokio",
  "tokio-util 0.3.1",
- "webpki-roots 0.19.0",
+ "webpki-roots 0.22.2",
 ]
 
 [[package]]
@@ -2124,22 +2124,32 @@ dependencies = [
  "untrusted",
 ]
 
+[[package]]
+name = "webpki"
+version = "0.22.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f095d78192e208183081cc07bc5515ef55216397af48b873e5edcd72637fa1bd"
+dependencies = [
+ "ring",
+ "untrusted",
+]
+
 [[package]]
 name = "webpki-roots"
 version = "0.17.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a262ae37dd9d60f60dd473d1158f9fbebf110ba7b6a5051c8160460f6043718b"
 dependencies = [
- "webpki",
+ "webpki 0.21.3",
 ]
 
 [[package]]
 name = "webpki-roots"
-version = "0.19.0"
+version = "0.22.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f8eff4b7516a57307f9349c64bf34caa34b940b66fed4b2fb3136cb7386e5739"
+checksum = "552ceb903e957524388c4d3475725ff2c8b7960922063af6ce53c9a43da07449"
 dependencies = [
- "webpki",
+ "webpki 0.22.0",
 ]
 
 [[package]]
diff --git a/Cargo.toml b/Cargo.toml
index ac02f8c..c494d82 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -23,6 +23,6 @@ actix-rt = "1.1.1"
 tokio = { version = "0.2.22", features = ["process"] }
 tokio-util = { version = "0.3.1", features = ["codec"] }
 rustls = "0.16"
-webpki-roots = "0.19.0"
+webpki-roots = "0.22.2"
 clap = "2.33.3"
 crossbeam-channel = "0.5.0"