diff --git a/src/gadgets/interpolation.rs b/src/gadgets/interpolation.rs
index 5d23b65b..9167e771 100644
--- a/src/gadgets/interpolation.rs
+++ b/src/gadgets/interpolation.rs
@@ -106,7 +106,6 @@ mod tests {
     use anyhow::Result;
 
     use crate::field::extension_field::quadratic::QuadraticExtension;
-    use crate::field::extension_field::quartic::QuarticExtension;
     use crate::field::extension_field::FieldExtension;
     use crate::field::field_types::Field;
     use crate::field::goldilocks_field::GoldilocksField;
diff --git a/src/gates/low_degree_interpolation.rs b/src/gates/low_degree_interpolation.rs
index d38bd773..1a869941 100644
--- a/src/gates/low_degree_interpolation.rs
+++ b/src/gates/low_degree_interpolation.rs
@@ -427,12 +427,9 @@ impl<F: RichField + Extendable<D>, const D: usize> SimpleGenerator<F>
 
 #[cfg(test)]
 mod tests {
-    use std::marker::PhantomData;
-
     use anyhow::Result;
 
     use crate::field::extension_field::quadratic::QuadraticExtension;
-    use crate::field::extension_field::quartic::QuarticExtension;
     use crate::field::field_types::Field;
     use crate::field::goldilocks_field::GoldilocksField;
     use crate::gadgets::interpolation::InterpolationGate;