diff --git a/Cargo.toml b/Cargo.toml
index 378dd4f..8d00e9f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -35,7 +35,7 @@ harness = false
 
 [dependencies]
 bitvec = "0.18"
-subtle = "2.2.1"
+subtle = "2.3"
 crossbeam-utils = "0.7"
 ff = "0.8"
 metrics = "=0.13.0-alpha.11"
diff --git a/src/plonk/permutation/prover.rs b/src/plonk/permutation/prover.rs
index 47d6bdf..6296f3b 100644
--- a/src/plonk/permutation/prover.rs
+++ b/src/plonk/permutation/prover.rs
@@ -13,7 +13,6 @@ use crate::{
     transcript::{Hasher, Transcript},
 };
 
-#[derive(Clone)]
 pub(crate) struct Committed<C: CurveAffine> {
     permutation_product_polys: Vec<Polynomial<C::Scalar, Coeff>>,
     permutation_product_cosets: Vec<Polynomial<C::Scalar, ExtendedLagrangeCoeff>>,