diff --git a/Cargo.lock b/Cargo.lock
index 6e40776f..9359a494 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -184,9 +184,9 @@ checksum = "8f42a60cbdf9a97f5d2305f08a87dc4e09308d1276d28c869c684d7777685682"
 
 [[package]]
 name = "keccak"
-version = "0.2.1"
+version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ffd9697dc4a9a62e2da93389f34400b77a28f0287711263cabb203b3ccb9c0e4"
+checksum = "d8f198d1db720e4940b5a493201d199d9f24f568f8f746bd13706243a2f71598"
 dependencies = [
  "cfg-if",
  "cpufeatures 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",