diff --git a/.circleci/config.yml b/.circleci/config.yml
index 53eb486f..aaf6b72b 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -24,8 +24,8 @@ jobs:
         name: Install rustup
         command: curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
     - run:
-        name: Install Rust 1.64
-        command: rustup install 1.64.0 && rustup default 1.64.0
+        name: Install Rust 1.73
+        command: rustup install 1.73.0 && rustup default 1.73.0
     - run:
         name: Install iOS targets
         command: rustup target add aarch64-apple-ios x86_64-apple-ios
@@ -37,7 +37,7 @@ jobs:
 
   test:
     docker:
-      - image: cimg/rust:1.64.0
+      - image: cimg/rust:1.73.0
     resource_class: large
     steps:
       - checkout
@@ -66,7 +66,7 @@ jobs:
 
   wasm:
     docker:
-      - image: cimg/rust:1.64.0
+      - image: cimg/rust:1.73.0
     steps:
     - checkout
     - run:
@@ -78,7 +78,7 @@ jobs:
 
   cross-android:
     docker:
-      - image: cimg/rust:1.64.0
+      - image: cimg/rust:1.73.0
     working_directory: ~/work
     steps:
     - checkout
diff --git a/Cargo.lock b/Cargo.lock
index d947e7f8..48d6c479 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4119,9 +4119,9 @@ dependencies = [
 
 [[package]]
 name = "webpki"
-version = "0.22.0"
+version = "0.22.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f095d78192e208183081cc07bc5515ef55216397af48b873e5edcd72637fa1bd"
+checksum = "07ecc0cd7cac091bf682ec5efa18b1cff79d617b84181f38b3951dbe135f607f"
 dependencies = [
  "ring",
  "untrusted",
diff --git a/Cargo.toml b/Cargo.toml
index ae21197d..b210e801 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,4 +1,5 @@
 [workspace]
+resolver = "2"
 
 members = [ 
     "crates/dkg-cli",
diff --git a/README.md b/README.md
index 5e5e86dc..3108d4de 100644
--- a/README.md
+++ b/README.md
@@ -14,13 +14,13 @@ Build with `cargo build (--release)`.
 Test with `cargo test`.
 
 All crates require Rust 2021 edition and are tested on the following channels:
-- `1.64.0`
+- `1.73.0`
 
 If you do not have Rust installed, run: `curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh`
 
 ## Android and iOS
 
-The library compiles to Android and iOS. This has been tested with Rust v1.64.0.
+The library compiles to Android and iOS. This has been tested with Rust v1.73.0.
 
 To compile to Android:
 
diff --git a/crates/dkg-cli/Dockerfile b/crates/dkg-cli/Dockerfile
index a693c3ec..3acd4135 100644
--- a/crates/dkg-cli/Dockerfile
+++ b/crates/dkg-cli/Dockerfile
@@ -1,4 +1,4 @@
-FROM cimg/rust:1.65.0
+FROM cimg/rust:1.73.0
 
 ENV HOME=/home/circleci
 ENV PATH=$HOME/bin:$PATH
diff --git a/crates/dkg-cli/src/actions.rs b/crates/dkg-cli/src/actions.rs
index dfa8730f..fdc712a5 100644
--- a/crates/dkg-cli/src/actions.rs
+++ b/crates/dkg-cli/src/actions.rs
@@ -37,7 +37,7 @@ where
 {
     let wallet = Wallet::new(rng);
     let output = CeloKeypairJson {
-        private_key: hex::encode(&wallet.signer().to_bytes()),
+        private_key: hex::encode(wallet.signer().to_bytes()),
         address: wallet.address(),
     };
 
@@ -355,9 +355,9 @@ fn parse_bundle<D: serde::de::DeserializeOwned>(
 
 fn write_output<C: Curve, W: Write>(writer: W, out: &DKGOutput<C>) -> Result<()> {
     let output = OutputJson {
-        public_key: hex::encode(&bincode::serialize(&out.public.public_key())?),
-        public_polynomial: hex::encode(&bincode::serialize(&out.public)?),
-        share: hex::encode(&bincode::serialize(&out.share)?),
+        public_key: hex::encode(bincode::serialize(&out.public.public_key())?),
+        public_polynomial: hex::encode(bincode::serialize(&out.public)?),
+        share: hex::encode(bincode::serialize(&out.share)?),
     };
     serde_json::to_writer(writer, &output)?;
     Ok(())
diff --git a/crates/dkg-core/src/primitives/resharing.rs b/crates/dkg-core/src/primitives/resharing.rs
index bc76eaa9..474f0e68 100644
--- a/crates/dkg-core/src/primitives/resharing.rs
+++ b/crates/dkg-core/src/primitives/resharing.rs
@@ -666,7 +666,7 @@ mod tests {
                             return b;
                         }
                         let msg = vec![1, 9, 6, 9];
-                        b.shares[((b.dealer_idx + 1) as usize % group.len()) as usize].secret =
+                        b.shares[(b.dealer_idx + 1) as usize % group.len()].secret =
                             ecies::encrypt::<BCurve, _>(
                                 &G1::rand(&mut thread_rng()),
                                 &msg,
diff --git a/crates/threshold-bls-ffi/src/ffi.rs b/crates/threshold-bls-ffi/src/ffi.rs
index 847cff99..ae03d10f 100644
--- a/crates/threshold-bls-ffi/src/ffi.rs
+++ b/crates/threshold-bls-ffi/src/ffi.rs
@@ -536,7 +536,7 @@ pub unsafe extern "C" fn destroy_privkey(private_key: *mut PrivateKey) {
 ///
 /// The pointer must point to a valid instance of the data type
 pub unsafe extern "C" fn free_vector(bytes: *mut u8, len: usize) {
-    drop(unsafe { Vec::from_raw_parts(bytes, len as usize, len as usize) });
+    drop(unsafe { Vec::from_raw_parts(bytes, len, len) });
 }
 
 #[no_mangle]
diff --git a/crates/threshold-bls/src/poly.rs b/crates/threshold-bls/src/poly.rs
index 8bba7514..1a6c4526 100644
--- a/crates/threshold-bls/src/poly.rs
+++ b/crates/threshold-bls/src/poly.rs
@@ -516,7 +516,7 @@ pub mod tests {
             .map(|i| poly.eval(i as Idx))
             .collect::<Vec<Eval<Sc>>>();
         let now = SystemTime::now();
-        Poly::<Sc>::recover(threshold as usize, shares).unwrap();
+        Poly::<Sc>::recover(threshold, shares).unwrap();
         match now.elapsed() {
             Ok(e) => println!("single recover: time elapsed {:?}", e),
             Err(e) => panic!("{}", e),
@@ -526,7 +526,7 @@ pub mod tests {
             .collect::<Vec<Eval<Sc>>>();
 
         let now = SystemTime::now();
-        Poly::<Sc>::full_recover(threshold as usize, shares).unwrap();
+        Poly::<Sc>::full_recover(threshold, shares).unwrap();
         match now.elapsed() {
             Ok(e) => println!("full_recover: time elapsed {:?}", e),
             Err(e) => panic!("{}", e),