diff --git a/ml-kem/src/algebra.rs b/ml-kem/src/algebra.rs
index 78dd3cb..dad1de0 100644
--- a/ml-kem/src/algebra.rs
+++ b/ml-kem/src/algebra.rs
@@ -8,7 +8,7 @@ use crate::param::{ArraySize, CbdSamplingSize};
 use crate::util::{Truncate, B32};
 
 #[cfg(feature = "zeroize")]
-use zeroize::{Zeroize, ZeroizeOnDrop};
+use zeroize::Zeroize;
 
 pub type Integer = u16;
 
@@ -24,9 +24,6 @@ impl Zeroize for FieldElement {
     }
 }
 
-#[cfg(feature = "zeroize")]
-impl ZeroizeOnDrop for FieldElement {}
-
 impl FieldElement {
     pub const Q: Integer = 3329;
     pub const Q32: u32 = Self::Q as u32;
@@ -196,9 +193,6 @@ impl Zeroize for NttPolynomial {
     }
 }
 
-#[cfg(feature = "zeroize")]
-impl ZeroizeOnDrop for NttPolynomial {}
-
 impl Add<&NttPolynomial> for &NttPolynomial {
     type Output = NttPolynomial;
 
@@ -447,9 +441,6 @@ where
     }
 }
 
-#[cfg(feature = "zeroize")]
-impl<K> ZeroizeOnDrop for NttVector<K> where K: ArraySize {}
-
 impl<K: ArraySize> Add<&NttVector<K>> for &NttVector<K> {
     type Output = NttVector<K>;
 
diff --git a/ml-kem/src/pke.rs b/ml-kem/src/pke.rs
index 1a893ed..571a1d6 100644
--- a/ml-kem/src/pke.rs
+++ b/ml-kem/src/pke.rs
@@ -8,7 +8,7 @@ use crate::param::{EncodedCiphertext, EncodedDecryptionKey, EncodedEncryptionKey
 use crate::util::B32;
 
 #[cfg(feature = "zeroize")]
-use zeroize::{Zeroize, ZeroizeOnDrop};
+use zeroize::Zeroize;
 
 /// A `DecryptionKey` provides the ability to generate a new key pair, and decrypt an
 /// encrypted value.
@@ -30,9 +30,6 @@ where
     }
 }
 
-#[cfg(feature = "zeroize")]
-impl<P> ZeroizeOnDrop for DecryptionKey<P> where P: PkeParams {}
-
 impl<P> DecryptionKey<P>
 where
     P: PkeParams,