diff --git a/crates/milli/src/update/new/channel.rs b/crates/milli/src/update/new/channel.rs
index 9e8039ffd..25f5fc05c 100644
--- a/crates/milli/src/update/new/channel.rs
+++ b/crates/milli/src/update/new/channel.rs
@@ -202,7 +202,7 @@ impl Drop for ExtractorSender {
         let send_count = *self.send_count.get_mut();
         let writer_contentious_count = *self.writer_contentious_count.get_mut();
         let extractor_contentious_count = *self.extractor_contentious_count.get_mut();
-        eprintln!(
+        tracing::debug!(
             "Extractor channel stats: {send_count} sends, \
             {writer_contentious_count} writer contentions ({}%), \
             {extractor_contentious_count} extractor contentions ({}%)",
diff --git a/crates/milli/src/update/new/extract/cache.rs b/crates/milli/src/update/new/extract/cache.rs
index 9c864372d..5aeffdb99 100644
--- a/crates/milli/src/update/new/extract/cache.rs
+++ b/crates/milli/src/update/new/extract/cache.rs
@@ -160,14 +160,14 @@ impl<'extractor> BalancedCaches<'extractor> {
         let BalancedCaches { hasher: _, alloc, max_memory: _, caches } = self;
 
         if let InnerCaches::Normal(normal_caches) = caches {
-            eprintln!(
+            tracing::trace!(
                 "We are spilling after we allocated {} bytes on thread #{}",
                 alloc.allocated_bytes(),
                 rayon::current_thread_index().unwrap_or(0)
             );
 
             let allocated: usize = normal_caches.caches.iter().map(|m| m.allocation_size()).sum();
-            eprintln!("The last allocated HashMap took {allocated} bytes");
+            tracing::trace!("The last allocated HashMap took {allocated} bytes");
 
             let dummy = NormalCaches { caches: Vec::new() };
             let NormalCaches { caches: cache_maps } = mem::replace(normal_caches, dummy);
diff --git a/crates/milli/src/update/new/indexer/document_changes.rs b/crates/milli/src/update/new/indexer/document_changes.rs
index 45db58bbd..bfb369680 100644
--- a/crates/milli/src/update/new/indexer/document_changes.rs
+++ b/crates/milli/src/update/new/indexer/document_changes.rs
@@ -224,10 +224,10 @@ where
     MSP: Fn() -> bool + Sync,
     SP: Fn(Progress) + Sync,
 {
-    eprintln!("We are resetting the extractor allocators");
+    tracing::trace!("We are resetting the extractor allocators");
     // Clean up and reuse the extractor allocs
     for extractor_alloc in extractor_allocs.iter_mut() {
-        eprintln!("\tWith {} bytes resetted", extractor_alloc.0.allocated_bytes());
+        tracing::trace!("\tWith {} bytes reset", extractor_alloc.0.allocated_bytes());
         extractor_alloc.0.reset();
     }
 
diff --git a/crates/milli/src/update/new/indexer/mod.rs b/crates/milli/src/update/new/indexer/mod.rs
index 18402da5f..be8678e13 100644
--- a/crates/milli/src/update/new/indexer/mod.rs
+++ b/crates/milli/src/update/new/indexer/mod.rs
@@ -491,7 +491,6 @@ fn compute_prefix_database(
     wtxn: &mut RwTxn,
     prefix_delta: PrefixDelta,
 ) -> Result<()> {
-    eprintln!("prefix_delta: {:?}", &prefix_delta);
     let PrefixDelta { modified, deleted } = prefix_delta;
     // Compute word prefix docids
     compute_word_prefix_docids(wtxn, index, &modified, &deleted)?;
@@ -609,7 +608,6 @@ fn compute_facet_level_database(
     wtxn: &mut RwTxn,
     facet_field_ids_delta: FacetFieldIdsDelta,
 ) -> Result<()> {
-    eprintln!("facet_field_ids_delta: {:?}", &facet_field_ids_delta);
     if let Some(modified_facet_string_ids) = facet_field_ids_delta.modified_facet_string_ids() {
         let span = tracing::trace_span!(target: "indexing::facet_field_ids", "string");
         let _entered = span.enter();