diff --git a/neopdf/src/gridpdf.rs b/neopdf/src/gridpdf.rs
index 443f4e8c..0c2bc5d9 100644
--- a/neopdf/src/gridpdf.rs
+++ b/neopdf/src/gridpdf.rs
@@ -6,9 +6,7 @@
 //! - [`GridArray`]: Stores the full set of subgrids and flavor IDs.
 
 use core::panic;
-
 use ndarray::{Array1, Array2};
-use rayon::prelude::*;
 use serde::{Deserialize, Serialize};
 use thiserror::Error;
 
@@ -327,7 +325,6 @@ impl GridPDF {
         let flatten_len = grid_shape.iter().product();
 
         let data: Vec<f64> = (0..flatten_len)
-            .into_par_iter()
             .map(|idx| {
                 let num_cols = slice_points.len();
                 let (fl_idx, s_idx) = (idx / num_cols, idx % num_cols);