diff --git a/Cargo.lock b/Cargo.lock
index d9eb1cc..0f4c483 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -213,21 +213,21 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "chacha20"
-version = "0.7.1"
+version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fee7ad89dc1128635074c268ee661f90c3f7e83d9fd12910608c36b47d6c3412"
+checksum = "f8c5d87765c99be3d2cb08d11a3c14820ecaf2c7ad45d301c533103d2d8a146c"
 dependencies = [
  "cfg-if",
  "cipher 0.3.0",
- "cpufeatures",
+ "cpufeatures 0.2.1",
  "zeroize",
 ]
 
 [[package]]
 name = "chacha20poly1305"
-version = "0.8.0"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1580317203210c517b6d44794abfbe600698276db18127e37ad3e69bf5e848e5"
+checksum = "3b84ed6d1d5f7aa9bdde921a5090e0ca4d934d250ea3b402a5fab3a994e28a2a"
 dependencies = [
  "aead 0.4.1",
  "chacha20",
@@ -283,6 +283,15 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "cpufeatures"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "95059428f66df56b63431fdb4e1947ed2190586af5c5a8a8b71122bdf5a7f469"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "cpuid-bool"
 version = "0.2.0"
@@ -599,9 +608,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.92"
+version = "0.2.101"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "56d855069fafbb9b344c0f962150cd2c1187975cb1c22c1522c240d8c4986714"
+checksum = "3cb00336871be5ed2c8ed44b60ae9959dc5b9f08539422ed43f09e34ecaeba21"
 
 [[package]]
 name = "log"
@@ -738,7 +747,7 @@ version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4fe800695325da85083cd23b56826fccb2e2dc29b218e7811a6f33bc93f414be"
 dependencies = [
- "cpufeatures",
+ "cpufeatures 0.1.4",
  "opaque-debug",
  "universal-hash",
 ]
@@ -950,7 +959,7 @@ checksum = "b362ae5752fd2137731f9fa25fd4d9058af34666ca1966fb969119cc35719f12"
 dependencies = [
  "block-buffer",
  "cfg-if",
- "cpufeatures",
+ "cpufeatures 0.1.4",
  "digest",
  "opaque-debug",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 782b98b..48ce621 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -20,7 +20,7 @@ sha2 = "0.9.5"
 ed25519-dalek = "1.0.1"
 x25519-dalek = "1.1.1"
 ecies-ed25519 = "0.5.1"
-chacha20poly1305 = "0.8.0"
+chacha20poly1305 = "0.9.0"
 signature = "1.3.1"
 blakeout = "0.3.0"
 num_cpus = "1.13.0"