diff --git a/.github/workflows/build-and-test.yml b/.github/workflows/build-and-test.yml
index bd53652..05e57de 100644
--- a/.github/workflows/build-and-test.yml
+++ b/.github/workflows/build-and-test.yml
@@ -2,8 +2,8 @@ name: Build and Test
 on: push
 
 env:
-  RUST_VERSION: 1.70.0
-  NIGHTLY_VERSION: nightly-2023-05-31
+  RUST_VERSION: 1.76.0
+  NIGHTLY_VERSION: nightly-2024-02-04
   CARGO_VET_VERSION: 0.7.0
   CARGO_VET_REPO: https://github.com/mozilla/cargo-vet
 
diff --git a/crates/semaphore-depth-macros/src/lib.rs b/crates/semaphore-depth-macros/src/lib.rs
index 377085d..fa2d9e3 100644
--- a/crates/semaphore-depth-macros/src/lib.rs
+++ b/crates/semaphore-depth-macros/src/lib.rs
@@ -101,8 +101,8 @@ impl VisitMut for IdentReplacer {
                 }
             }
             syn::Expr::Macro(mcr) => {
-                let Ok(mut args) =  mcr.mac.parse_body::<MacroArgs>() else {
-                     return;
+                let Ok(mut args) = mcr.mac.parse_body::<MacroArgs>() else {
+                    return;
                 };
                 for arg in &mut args.args {
                     self.visit_expr_mut(arg);
diff --git a/src/lazy_merkle_tree.rs b/src/lazy_merkle_tree.rs
index 27b669f..98c4a74 100644
--- a/src/lazy_merkle_tree.rs
+++ b/src/lazy_merkle_tree.rs
@@ -1149,7 +1149,7 @@ impl<H: Hasher> MmapMutWrapper<H> {
         };
 
         file.set_len(file_size).expect("cannot set file size");
-        if file.write_all(&buf).is_err() {
+        if file.write_all(buf).is_err() {
             return Err(DenseMMapError::FileCannotWriteBytes);
         }
 
diff --git a/src/lib.rs b/src/lib.rs
index 00a2248..3eeca67 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -145,8 +145,11 @@ mod test {
 #[cfg(feature = "bench")]
 pub mod bench {
     use crate::{
-        hash_to_field, identity::Identity, poseidon_tree::LazyPoseidonTree,
-        protocol::{generate_proof, generate_witness}, Field,
+        hash_to_field,
+        identity::Identity,
+        poseidon_tree::LazyPoseidonTree,
+        protocol::{generate_proof, generate_witness},
+        Field,
     };
     use criterion::Criterion;
     use semaphore_depth_config::get_supported_depths;
@@ -182,18 +185,18 @@ pub mod bench {
 
     fn bench_witness(criterion: &mut Criterion, depth: usize) {
         let leaf = Field::from(0);
-    
+
         // Create tree
         let mut hello = *b"hello";
         let id = Identity::from_secret(&mut hello, None);
         let mut tree = LazyPoseidonTree::new(depth, leaf).derived();
         tree = tree.update(0, &id.commitment());
         let merkle_proof = tree.proof(0);
-    
+
         // change signal and external_nullifier here
         let signal_hash = hash_to_field(b"xxx");
         let external_nullifier_hash = hash_to_field(b"appId");
-    
+
         criterion.bench_function(&format!("witness_{depth}"), move |b| {
             b.iter(|| {
                 generate_witness(&id, &merkle_proof, external_nullifier_hash, signal_hash).unwrap();