diff --git a/Cargo.lock b/Cargo.lock
index dd0fa642..6870a26c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -184,9 +184,9 @@ checksum = "8f42a60cbdf9a97f5d2305f08a87dc4e09308d1276d28c869c684d7777685682"
 
 [[package]]
 name = "keccak"
-version = "0.2.0"
+version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9e24a010dd405bd7ed803e5253182815b41bf2e6a80cc3bfc066658e03a198aa"
+checksum = "ffd9697dc4a9a62e2da93389f34400b77a28f0287711263cabb203b3ccb9c0e4"
 dependencies = [
  "cfg-if",
  "cpufeatures 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",