diff --git a/Cargo.lock b/Cargo.lock
index 892f6e31..f633b64c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2724,9 +2724,9 @@ checksum = "6e63cff320ae2c57904679ba7cb63280a3dc4613885beafb148ee7bf9aa9042d"
 
 [[package]]
 name = "spki"
-version = "0.4.0"
+version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "987637c5ae6b3121aba9d513f869bd2bff11c4cc086c22473befd6649c0bd521"
+checksum = "5c01a0c15da1b0b0e1494112e7af814a678fec9bd157881b49beac661e9b6f32"
 dependencies = [
  "der",
 ]
diff --git a/ethers-signers/Cargo.toml b/ethers-signers/Cargo.toml
index 159b2f73..1f8386fe 100644
--- a/ethers-signers/Cargo.toml
+++ b/ethers-signers/Cargo.toml
@@ -33,7 +33,7 @@ rusoto_core = { version = "0.47.0", optional = true }
 rusoto_kms = { version = "0.47.0", optional = true }
 tracing = { version = "0.1.27", optional = true }
 tracing-futures = { version = "0.2.5", optional = true }
-spki = { version = "0.4.0", optional = true }
+spki = { version = "0.4.1", optional = true }
 
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]
 eth-keystore = { version = "0.3.0" }