diff --git a/sequencer/src/bin/deploy.rs b/sequencer/src/bin/deploy.rs
index f3dde02922..02939f289d 100644
--- a/sequencer/src/bin/deploy.rs
+++ b/sequencer/src/bin/deploy.rs
@@ -145,7 +145,11 @@ async fn main() -> anyhow::Result<()> {
     }
 
     if let Some(out) = &opt.out {
-        let file = File::options().create(true).write(true).open(out)?;
+        let file = File::options()
+            .create(true)
+            .truncate(true)
+            .write(true)
+            .open(out)?;
         contracts.write(file)?;
     } else {
         contracts.write(stdout())?;
diff --git a/sequencer/src/bin/keygen.rs b/sequencer/src/bin/keygen.rs
index f8ead1eb47..f2bf8760c6 100644
--- a/sequencer/src/bin/keygen.rs
+++ b/sequencer/src/bin/keygen.rs
@@ -138,7 +138,11 @@ fn main() -> anyhow::Result<()> {
         tracing::info!("generating new key set");
 
         let path = opts.out.join(format!("{index}.env"));
-        let mut file = File::options().write(true).create(true).open(&path)?;
+        let mut file = File::options()
+            .write(true)
+            .create(true)
+            .truncate(true)
+            .open(&path)?;
         opts.scheme.gen(seed, index as u64, &mut file)?;
 
         tracing::info!("private keys written to {}", path.display());
diff --git a/sequencer/src/block/payload.rs b/sequencer/src/block/payload.rs
index 0f73afdec0..3a07cc3d18 100644
--- a/sequencer/src/block/payload.rs
+++ b/sequencer/src/block/payload.rs
@@ -355,7 +355,7 @@ mod test {
 
     fn check_basic_correctness<TableWord: TableWordTraits>() {
         // play with this
-        let test_cases = vec![
+        let test_cases = [
             // 1 namespace only
             vec![vec![5, 8, 8]], // 3 non-empty txs
             vec![vec![0, 8, 8]], // 1 empty tx at the beginning