diff --git a/integrations/fastembed/src/haystack_integrations/components/embedders/fastembed/embedding_backend/fastembed_backend.py b/integrations/fastembed/src/haystack_integrations/components/embedders/fastembed/embedding_backend/fastembed_backend.py
index 392f9d32d..ee51283e6 100644
--- a/integrations/fastembed/src/haystack_integrations/components/embedders/fastembed/embedding_backend/fastembed_backend.py
+++ b/integrations/fastembed/src/haystack_integrations/components/embedders/fastembed/embedding_backend/fastembed_backend.py
@@ -38,5 +38,6 @@ def __init__(
         self.model = TextEmbedding(model_name=model_name)
 
     def embed(self, data: List[List[str]], **kwargs) -> List[List[float]]:
-        embeddings = list(self.model.embed(data, **kwargs))
+        # the embed method returns a Iterable[np.ndarray], so we convert it to a list of lists
+        embeddings = [np_array.tolist() for np_array in self.model.embed(data, **kwargs)]
         return embeddings
diff --git a/integrations/fastembed/src/haystack_integrations/components/embedders/fastembed/fastembed_document_embedder.py b/integrations/fastembed/src/haystack_integrations/components/embedders/fastembed/fastembed_document_embedder.py
index 03dc301b9..b913b0de4 100644
--- a/integrations/fastembed/src/haystack_integrations/components/embedders/fastembed/fastembed_document_embedder.py
+++ b/integrations/fastembed/src/haystack_integrations/components/embedders/fastembed/fastembed_document_embedder.py
@@ -142,6 +142,6 @@ def run(self, documents: List[Document]):
         )
 
         for doc, emb in zip(documents, embeddings):
-            doc.embedding = list(emb)
+            doc.embedding = emb
 
         return {"documents": documents}
diff --git a/integrations/fastembed/tests/test_fastembed_document_embedder.py b/integrations/fastembed/tests/test_fastembed_document_embedder.py
index 6dd1b6e52..597999354 100644
--- a/integrations/fastembed/tests/test_fastembed_document_embedder.py
+++ b/integrations/fastembed/tests/test_fastembed_document_embedder.py
@@ -248,4 +248,4 @@ def test_run(self):
 
         assert isinstance(embedding, list)
         assert len(embedding) == 384
-        assert all(isinstance(emb.item(), float) for emb in embedding)
+        assert all(isinstance(emb, float) for emb in embedding)
diff --git a/integrations/fastembed/tests/test_fastembed_text_embedder.py b/integrations/fastembed/tests/test_fastembed_text_embedder.py
index 465f17976..3a7588263 100644
--- a/integrations/fastembed/tests/test_fastembed_text_embedder.py
+++ b/integrations/fastembed/tests/test_fastembed_text_embedder.py
@@ -186,4 +186,4 @@ def test_run(self):
 
         assert isinstance(embedding, list)
         assert len(embedding) == 384
-        assert all(isinstance(emb.item(), float) for emb in embedding)
+        assert all(isinstance(emb, float) for emb in embedding)