diff --git a/arrow-csv/src/reader/mod.rs b/arrow-csv/src/reader/mod.rs
index 83c8965fdf8a..5e0530289623 100644
--- a/arrow-csv/src/reader/mod.rs
+++ b/arrow-csv/src/reader/mod.rs
@@ -1877,7 +1877,7 @@ mod tests {
     #[test]
     fn test_bounded() {
         let schema = Schema::new(vec![Field::new("int", DataType::UInt32, false)]);
-        let data = vec![
+        let data = [
             vec!["0"],
             vec!["1"],
             vec!["2"],
@@ -1919,7 +1919,7 @@ mod tests {
     #[test]
     fn test_empty_projection() {
         let schema = Schema::new(vec![Field::new("int", DataType::UInt32, false)]);
-        let data = vec![vec!["0"], vec!["1"]];
+        let data = [vec!["0"], vec!["1"]];
 
         let data = data
             .iter()
diff --git a/arrow-row/src/lib.rs b/arrow-row/src/lib.rs
index c2f5293f94c8..037ed404adca 100644
--- a/arrow-row/src/lib.rs
+++ b/arrow-row/src/lib.rs
@@ -2223,7 +2223,7 @@ mod tests {
 
         let first = Int32Array::from(vec![None, Some(2), Some(4)]);
         let second = Int32Array::from(vec![Some(2), None, Some(4)]);
-        let arrays = vec![Arc::new(first) as ArrayRef, Arc::new(second) as ArrayRef];
+        let arrays = [Arc::new(first) as ArrayRef, Arc::new(second) as ArrayRef];
 
         for array in arrays.iter() {
             rows.clear();
diff --git a/parquet/src/arrow/arrow_writer/mod.rs b/parquet/src/arrow/arrow_writer/mod.rs
index 18c8617e07e6..7206e6a6907d 100644
--- a/parquet/src/arrow/arrow_writer/mod.rs
+++ b/parquet/src/arrow/arrow_writer/mod.rs
@@ -1200,7 +1200,7 @@ mod tests {
         let schema = Schema::new(vec![string_field, binary_field]);
 
         let raw_string_values = vec!["foo", "bar", "baz", "quux"];
-        let raw_binary_values = vec![
+        let raw_binary_values = [
             b"foo".to_vec(),
             b"bar".to_vec(),
             b"baz".to_vec(),