diff --git a/Cargo.toml b/Cargo.toml
index 785c3de..5f9556c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -22,8 +22,8 @@ byteorder = "1.3.4"
 chrono = { version= "0.4.19", features = ["serde"] }
 encoding_rs = "0.8.26"
 enum_primitive = "0.1.1"
-image = "0.24"
-itertools = "0.11"
+image = "0.25.1"
+itertools = "0.13.0"
 num = "0.4"
 serde = { version = "1.0", features = ["derive"], optional = true }
 uuid = { version = "1.3.3", features = ["serde", "v4"] }
diff --git a/src/dxb_writer.rs b/src/dxb_writer.rs
index 4e86ad5..d40bc68 100644
--- a/src/dxb_writer.rs
+++ b/src/dxb_writer.rs
@@ -45,7 +45,7 @@ impl<T: Write> DxbWriter<T> {
         if writing_block {
             self.write_entities(&drawing.blocks().next().unwrap().entities)?;
         } else {
-            let groups = drawing.entities().group_by(|&e| e.common.layer.clone());
+            let groups = drawing.entities().chunk_by(|&e| e.common.layer.clone());
             for (layer, entities) in &groups {
                 self.write_item_type(DxbItemType::NewLayer)?;
                 self.write_null_terminated_string(&layer)?;
diff --git a/src/entity_iter.rs b/src/entity_iter.rs
index 432d036..fe44b83 100644
--- a/src/entity_iter.rs
+++ b/src/entity_iter.rs
@@ -39,7 +39,9 @@ where
                 specific: EntityType::Seqend(_),
                 ..
             }) => (),
-            Some(ent) => iter.put_back(ent),
+            Some(ent) => {
+                iter.put_back(ent);
+            }
             None => (),
         }