diff --git a/Cargo.lock b/Cargo.lock
index 426d9f86..d94622fc 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -831,7 +831,7 @@ dependencies = [
  "hex",
  "rand_core 0.5.1",
  "serde",
- "sha2 0.9.1",
+ "sha2 0.9.2",
  "thiserror",
 ]
 
@@ -845,7 +845,7 @@ dependencies = [
  "hex",
  "rand_core 0.5.1",
  "serde",
- "sha2 0.9.1",
+ "sha2 0.9.2",
  "thiserror",
 ]
 
@@ -2543,12 +2543,12 @@ dependencies = [
 
 [[package]]
 name = "sha2"
-version = "0.9.1"
+version = "0.9.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2933378ddfeda7ea26f48c555bdad8bb446bf8a3d17832dc83e380d444cfb8c1"
+checksum = "6e7aab86fe2149bad8c507606bdb3f4ef5e7b2380eb92350f56122cca72a42a8"
 dependencies = [
  "block-buffer 0.9.0",
- "cfg-if 0.1.10",
+ "cfg-if 1.0.0",
  "cpuid-bool",
  "digest 0.9.0",
  "opaque-debug 0.3.0",
@@ -3375,7 +3375,7 @@ dependencies = [
  "secp256k1",
  "serde",
  "serde-big-array",
- "sha2 0.9.1",
+ "sha2 0.9.2",
  "spandoc",
  "thiserror",
  "tracing",
diff --git a/zebra-chain/Cargo.toml b/zebra-chain/Cargo.toml
index b2279442..61072ed7 100644
--- a/zebra-chain/Cargo.toml
+++ b/zebra-chain/Cargo.toml
@@ -30,7 +30,7 @@ ripemd160 = "0.8.0"
 secp256k1 = { version = "0.19.0", features = ["serde"] }
 serde = { version = "1", features = ["serde_derive", "rc"] }
 serde-big-array = "0.3.0"
-sha2 = { version = "0.9.1", features=["compress"] }
+sha2 = { version = "0.9.2", features=["compress"] }
 thiserror = "1"
 x25519-dalek = { version = "1.1", features = ["serde"] }