diff --git a/Cargo.lock b/Cargo.lock
index fc5021bc..4d917cf0 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -939,9 +939,9 @@ checksum = "453440c271cf5577fd2a40e4942540cb7d0d2f85e27c8d07dd0023c925a67541"
 
 [[package]]
 name = "ecdsa"
-version = "0.13.3"
+version = "0.13.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e91ae02c7618ee05108cd86a0be2f5586d1f0d965bede7ecfd46815f1b860227"
+checksum = "d0d69ae62e0ce582d56380743515fefaf1a8c70cec685d9677636d7e30ae9dc9"
 dependencies = [
  "der",
  "elliptic-curve",
diff --git a/ethers-core/Cargo.toml b/ethers-core/Cargo.toml
index 326afab3..992f5098 100644
--- a/ethers-core/Cargo.toml
+++ b/ethers-core/Cargo.toml
@@ -16,7 +16,7 @@ arrayvec = { version = "0.7.2", default-features = false }
 rlp-derive = { version = "0.1.0", default-features = false }
 
 # crypto
-ecdsa = { version = "0.13.3", default-features = false, features = ["std"] }
+ecdsa = { version = "0.13.4", default-features = false, features = ["std"] }
 elliptic-curve = { version = "0.11.5", default-features = false }
 generic-array = { version = "0.14.5", default-features = false }
 k256 = { version = "0.10.1", default-features = false, features = ["keccak256", "ecdsa"] }