diff --git a/milli/src/update/index_documents/extract/extract_vector_points.rs b/milli/src/update/index_documents/extract/extract_vector_points.rs
index 3a0376511..cdf0b37f0 100644
--- a/milli/src/update/index_documents/extract/extract_vector_points.rs
+++ b/milli/src/update/index_documents/extract/extract_vector_points.rs
@@ -135,7 +135,7 @@ pub fn extract_vector_points<R: io::Read + io::Seek>(
                 let del_vectors = extract_vectors(old, document_id, embedder_name)?;
                 let add_vectors = extract_vectors(new, document_id, embedder_name)?;
 
-                if add_vectors.len() > u8::MAX.into() {
+                if add_vectors.len() > usize::from(u8::MAX) {
                     return Err(crate::Error::UserError(crate::UserError::TooManyVectors(
                         document_id().to_string(),
                         add_vectors.len(),
@@ -164,7 +164,7 @@ pub fn extract_vector_points<R: io::Read + io::Seek>(
             (None, Some(new)) => {
                 // was possibly autogenerated, remove all vectors for that document
                 let add_vectors = extract_vectors(new, document_id, embedder_name)?;
-                if add_vectors.len() > u8::MAX.into() {
+                if add_vectors.len() > usize::from(u8::MAX) {
                     return Err(crate::Error::UserError(crate::UserError::TooManyVectors(
                         document_id().to_string(),
                         add_vectors.len(),
diff --git a/milli/src/update/index_documents/typed_chunk.rs b/milli/src/update/index_documents/typed_chunk.rs
index f8fb30c7b..e12479bee 100644
--- a/milli/src/update/index_documents/typed_chunk.rs
+++ b/milli/src/update/index_documents/typed_chunk.rs
@@ -407,7 +407,7 @@ pub(crate) fn write_typed_chunk_into_index(
                             // code error if we somehow got the wrong dimension
                             .unwrap();
 
-                    if embeddings.embedding_count() > u8::MAX.into() {
+                    if embeddings.embedding_count() > usize::from(u8::MAX) {
                         let external_docid = if let Ok(Some(Ok(index))) = index
                             .external_id_of(wtxn, std::iter::once(docid))
                             .map(|it| it.into_iter().next())