diff --git a/Cargo.lock b/Cargo.lock
index cb472448b..bbb9dbb1d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2211,7 +2211,9 @@ checksum = "d87c48c02e0dc5e3b849a2041db3029fd066650f8f717c07bf8ed78ccb895cac"
 dependencies = [
  "http",
  "hyper",
+ "log",
  "rustls",
+ "rustls-native-certs",
  "tokio",
  "tokio-rustls",
 ]
@@ -3518,7 +3520,7 @@ dependencies = [
  "futures",
  "http",
  "hyper",
- "hyper-tls",
+ "hyper-rustls",
  "lazy_static",
  "log",
  "rusoto_credential",
@@ -3629,6 +3631,18 @@ dependencies = [
  "webpki",
 ]
 
+[[package]]
+name = "rustls-native-certs"
+version = "0.6.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0167bac7a9f490495f3c33013e7722b53cb087ecbe082fb0c6387c96f634ea50"
+dependencies = [
+ "openssl-probe",
+ "rustls-pemfile",
+ "schannel",
+ "security-framework",
+]
+
 [[package]]
 name = "rustls-pemfile"
 version = "1.0.0"
diff --git a/ethers-signers/Cargo.toml b/ethers-signers/Cargo.toml
index 8a25e34fc..169dfc6d0 100644
--- a/ethers-signers/Cargo.toml
+++ b/ethers-signers/Cargo.toml
@@ -34,8 +34,8 @@ trezor-client = { version = "0.0.7", optional = true, default-features = false,
 ] }
 
 # aws
-rusoto_core = { version = "0.48.0", optional = true }
-rusoto_kms = { version = "0.48.0", optional = true }
+rusoto_core = { version = "0.48.0", default-features = false, optional = true }
+rusoto_kms = { version = "0.48.0", default-features = false, optional = true }
 tracing = { version = "0.1.37", optional = true }
 spki = { version = "0.6.0", optional = true }
 
@@ -60,5 +60,5 @@ futures = ["futures-util", "futures-executor"]
 celo = ["ethers-core/celo"]
 ledger = ["coins-ledger", "futures", "semver"]
 yubi = ["yubihsm"]
-aws = ["rusoto_core", "rusoto_kms", "tracing", "spki"]
+aws = ["rusoto_core/rustls", "rusoto_kms/rustls", "tracing", "spki"]
 trezor = ["trezor-client", "futures", "semver", "home"]