diff --git a/Cargo.lock b/Cargo.lock
index 9ac800eb..f769b061 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -597,9 +597,9 @@ dependencies = [
 
 [[package]]
 name = "ecdsa"
-version = "0.12.2"
+version = "0.12.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "05cb0ed2d2ce37766ac86c05f66973ace8c51f7f1533bedce8fb79e2b54b3f14"
+checksum = "713c32426287891008edb98f8b5c6abb2130aa043c93a818728fcda78606f274"
 dependencies = [
  "der",
  "elliptic-curve",
@@ -638,9 +638,9 @@ checksum = "e78d4f1cc4ae33bbfc157ed5d5a5ef3bc29227303d595861deb238fcec4e9457"
 
 [[package]]
 name = "elliptic-curve"
-version = "0.10.4"
+version = "0.10.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "83e5c176479da93a0983f0a6fdc3c1b8e7d5be0d7fe3fe05a99f15b96582b9a8"
+checksum = "069397e10739989e400628cbc0556a817a8a64119d7a2315767f4456e1332c23"
 dependencies = [
  "crypto-bigint",
  "ff",
@@ -796,7 +796,7 @@ dependencies = [
 name = "ethers-core"
 version = "0.4.0"
 dependencies = [
- "arrayvec 0.5.2",
+ "arrayvec 0.7.1",
  "bincode",
  "bytes",
  "ecdsa",
@@ -1370,9 +1370,9 @@ dependencies = [
 
 [[package]]
 name = "k256"
-version = "0.9.4"
+version = "0.9.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f3a26a4a8e8b0ab315c687767b543c923c9667a1f2bf42a42818d1453891c7c1"
+checksum = "903ae2481bcdfdb7b68e0a9baa4b7c9aff600b9ae2e8e5bb5833b8c91ab851ea"
 dependencies = [
  "cfg-if 1.0.0",
  "ecdsa",
@@ -2839,9 +2839,9 @@ dependencies = [
 
 [[package]]
 name = "zeroize"
-version = "1.3.0"
+version = "1.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4756f7db3f7b5574938c3eb1c117038b8e07f95ee6718c0efad4ac21508f1efd"
+checksum = "377db0846015f7ae377174787dd452e1c5f5a9050bc6f954911d01f116daa0cd"
 dependencies = [
  "zeroize_derive",
 ]
diff --git a/ethers-core/Cargo.toml b/ethers-core/Cargo.toml
index cce73b4a..102bcfe9 100644
--- a/ethers-core/Cargo.toml
+++ b/ethers-core/Cargo.toml
@@ -12,13 +12,13 @@ keywords = ["ethereum", "web3", "celo", "ethers"]
 [dependencies]
 rlp = { version = "0.5.0", default-features = false }
 ethabi = { version = "14.1.0", default-features = false }
-arrayvec = { version = "0.5.1", default-features = false }
+arrayvec = { version = "0.7.1", default-features = false }
 
 # crypto
-ecdsa = { version = "0.12.2", default-features = false, features = ["std"] }
-elliptic-curve = { version = "0.10.4", default-features = false }
+ecdsa = { version = "0.12.3", default-features = false, features = ["std"] }
+elliptic-curve = { version = "0.10.5", default-features = false }
 generic-array = { version = "0.14.4", default-features = false }
-k256 = { version = "0.9.4", default-features = false, features = ["keccak256", "ecdsa"] }
+k256 = { version = "0.9.5", default-features = false, features = ["keccak256", "ecdsa"] }
 rand = { version = "0.8.4", default-features = false }
 tiny-keccak = { version = "2.0.2", default-features = false }
 
diff --git a/ethers-core/src/abi/tokens.rs b/ethers-core/src/abi/tokens.rs
index 904397f7..40221511 100644
--- a/ethers-core/src/abi/tokens.rs
+++ b/ethers-core/src/abi/tokens.rs
@@ -414,7 +414,7 @@ macro_rules! impl_fixed_types {
                             )));
                         }
 
-                        let mut arr = ArrayVec::<[T; $num]>::new();
+                        let mut arr = ArrayVec::<T, $num>::new();
                         let mut it = tokens.into_iter().map(T::from_token);
                         for _ in 0..$num {
                             arr.push(it.next().expect("Length validated in guard; qed")?);
diff --git a/ethers-signers/Cargo.toml b/ethers-signers/Cargo.toml
index d9ab9777..ca83be81 100644
--- a/ethers-signers/Cargo.toml
+++ b/ethers-signers/Cargo.toml
@@ -22,7 +22,7 @@ coins-ledger = { version = "0.1.0", default-features = false, optional = true }
 eth-keystore = { version = "0.3.0" }
 hex = { version = "0.4.3", default-features = false, features = ["std"] }
 async-trait = { version = "0.1.50", default-features = false }
-elliptic-curve = { version = "0.10.4", default-features = false }
+elliptic-curve = { version = "0.10.5", default-features = false }
 sha2 = { version = "0.9.3", default-features = false }
 rand = { version = "0.8.4", default-features = false }
 yubihsm = { version = "0.39.0", features = ["secp256k1", "http", "usb"], optional = true }