diff --git a/Cargo.lock b/Cargo.lock
index 46d19fec..abb0e54c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -258,9 +258,9 @@ dependencies = [
 
 [[package]]
 name = "const-oid"
-version = "0.7.1"
+version = "0.9.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e4c78c047431fee22c1a7bb92e00ad095a02a983affe4d8a72e2a2c62c1b94f3"
+checksum = "520fbf3c07483f94e3e3ca9d0cfd913d7718ef2483d2cfd91c0d9e91474ab913"
 
 [[package]]
 name = "core-foundation"
@@ -339,16 +339,6 @@ dependencies = [
  "libc",
 ]
 
-[[package]]
-name = "crypto-bigint"
-version = "0.3.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "03c6a1d5fa1de37e071642dfa44ec552ca5b299adb128fab16138e24b548fd21"
-dependencies = [
- "generic-array",
- "subtle",
-]
-
 [[package]]
 name = "crypto-common"
 version = "0.1.6"
@@ -385,13 +375,13 @@ checksum = "0c87e182de0887fd5361989c677c4e8f5000cd9491d6d563161a8f3a5519fc7f"
 
 [[package]]
 name = "der"
-version = "0.5.1"
+version = "0.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6919815d73839e7ad218de758883aae3a257ba6759ce7a9992501efbb53d705c"
+checksum = "f1a467a65c5e759bce6e65eaf91cc29f466cdc57cb65777bd646872a8a1fd4de"
 dependencies = [
  "const-oid",
- "crypto-bigint",
  "pem-rfc7468",
+ "zeroize",
 ]
 
 [[package]]
@@ -401,6 +391,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8168378f4e5023e7218c89c891c0fd8ecdb5e5e4f18cb78f38cf245dd021e76f"
 dependencies = [
  "block-buffer",
+ "const-oid",
  "crypto-common",
  "subtle",
 ]
@@ -1995,9 +1986,9 @@ checksum = "19b17cddbe7ec3f8bc800887bab5e717348c95ea2ca0b1bf0837fb964dc67099"
 
 [[package]]
 name = "pem-rfc7468"
-version = "0.3.1"
+version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "01de5d978f34aa4b2296576379fcc416034702fd94117c56ffd8a1a767cefb30"
+checksum = "24d159833a9105500e0398934e205e0773f0b27529557134ecfc51c27646adac"
 dependencies = [
  "base64ct",
 ]
@@ -2032,24 +2023,24 @@ checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
 
 [[package]]
 name = "pkcs1"
-version = "0.3.3"
+version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a78f66c04ccc83dd4486fd46c33896f4e17b24a7a3a6400dedc48ed0ddd72320"
+checksum = "eff33bdbdfc54cc98a2eca766ebdec3e1b8fb7387523d5c9c9a2891da856f719"
 dependencies = [
  "der",
  "pkcs8",
+ "spki",
  "zeroize",
 ]
 
 [[package]]
 name = "pkcs8"
-version = "0.8.0"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7cabda3fb821068a9a4fab19a683eac3af12edf0f34b94a8be53c4972b8149d0"
+checksum = "9eca2c590a5f85da82668fa685c09ce2888b9430e83299debf1f34b65fd4a4ba"
 dependencies = [
  "der",
  "spki",
- "zeroize",
 ]
 
 [[package]]
@@ -2332,9 +2323,9 @@ dependencies = [
 
 [[package]]
 name = "rsa"
-version = "0.6.1"
+version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4cf22754c49613d2b3b119f0e5d46e34a2c628a937e3024b8762de4e7d8c710b"
+checksum = "55a77d189da1fee555ad95b7e50e7457d91c0e089ec68ca69ad2989413bbdab4"
 dependencies = [
  "byteorder",
  "digest",
@@ -2345,7 +2336,7 @@ dependencies = [
  "pkcs1",
  "pkcs8",
  "rand_core",
- "smallvec",
+ "signature",
  "subtle",
  "zeroize",
 ]
@@ -2627,6 +2618,16 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "signature"
+version = "2.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5e1788eed21689f9cf370582dfc467ef36ed9c707f073528ddafa8d83e3b8500"
+dependencies = [
+ "digest",
+ "rand_core",
+]
+
 [[package]]
 name = "slab"
 version = "0.4.8"
@@ -2660,9 +2661,9 @@ checksum = "6e63cff320ae2c57904679ba7cb63280a3dc4613885beafb148ee7bf9aa9042d"
 
 [[package]]
 name = "spki"
-version = "0.5.4"
+version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "44d01ac02a6ccf3e07db148d2be087da624fea0221a16152ed01f0496a6b0a27"
+checksum = "67cf02bbac7a337dc36e4f5a693db6c21e7863f45070f7064577eb4367a3212b"
 dependencies = [
  "base64ct",
  "der",
diff --git a/core/Cargo.toml b/core/Cargo.toml
index b0c52236..07da591d 100644
--- a/core/Cargo.toml
+++ b/core/Cargo.toml
@@ -43,10 +43,10 @@ priority-queue = "1.2"
 protobuf = "3"
 quick-xml = { version = "0.23", features = ["serialize"] }
 rand = "0.8"
-rsa = "0.6"
+rsa = "0.8.2"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
-sha1 = "0.10"
+sha1 = { version = "0.10", features = ["oid"] }
 shannon = "0.2"
 sysinfo = { version = "0.28", default-features = false }
 thiserror = "1.0"
diff --git a/core/src/connection/handshake.rs b/core/src/connection/handshake.rs
index abcc0a3d..e4fdba4f 100644
--- a/core/src/connection/handshake.rs
+++ b/core/src/connection/handshake.rs
@@ -4,7 +4,7 @@ use byteorder::{BigEndian, ByteOrder, WriteBytesExt};
 use hmac::{Hmac, Mac};
 use protobuf::{self, Message};
 use rand::{thread_rng, RngCore};
-use rsa::{BigUint, PublicKey};
+use rsa::{BigUint, Pkcs1v15Sign, PublicKey};
 use sha1::{Digest, Sha1};
 use thiserror::Error;
 use tokio::io::{AsyncRead, AsyncReadExt, AsyncWrite, AsyncWriteExt};
@@ -83,11 +83,9 @@ pub async fn handshake<T: AsyncRead + AsyncWrite + Unpin>(
     })?;
 
     let hash = Sha1::digest(&remote_key);
-    let padding = PaddingScheme(rsa::padding::PaddingScheme::new_pkcs1v15_sign(Some(
-        rsa::hash::Hash::SHA1,
-    )));
+    let padding = Pkcs1v15Sign::new::<Sha1>();
     public_key
-        .verify(padding.0, &hash, &remote_signature)
+        .verify(padding, &hash, &remote_signature)
         .map_err(|_| {
             io::Error::new(
                 io::ErrorKind::InvalidData,
@@ -105,13 +103,6 @@ pub async fn handshake<T: AsyncRead + AsyncWrite + Unpin>(
     Ok(codec.framed(connection))
 }
 
-// Workaround for https://github.com/RustCrypto/RSA/issues/214
-struct PaddingScheme(rsa::padding::PaddingScheme);
-
-/// # Safety
-/// The `rsa::padding::PaddingScheme` variant we use is actually `Send`.
-unsafe impl Send for PaddingScheme {}
-
 async fn client_hello<T>(connection: &mut T, gc: Vec<u8>) -> io::Result<Vec<u8>>
 where
     T: AsyncWrite + Unpin,