diff --git a/haystack/reader/farm.py b/haystack/reader/farm.py
index 61400ffb8..5871fc404 100644
--- a/haystack/reader/farm.py
+++ b/haystack/reader/farm.py
@@ -508,7 +508,7 @@ class FARMReader(BaseReader):
         # Create DataLoader that can be passed to the Evaluator
         tic = perf_counter()
         indices = range(len(farm_input))
-        dataset, tensor_names = self.inferencer.processor.dataset_from_dicts(farm_input, indices=indices)
+        dataset, tensor_names, problematic_ids = self.inferencer.processor.dataset_from_dicts(farm_input, indices=indices)
         data_loader = NamedDataLoader(dataset=dataset, batch_size=self.inferencer.batch_size, tensor_names=tensor_names)
 
         evaluator = Evaluator(data_loader=data_loader, tasks=self.inferencer.processor.tasks, device=device)
diff --git a/haystack/retriever/dense.py b/haystack/retriever/dense.py
index 89e33939f..127decacc 100644
--- a/haystack/retriever/dense.py
+++ b/haystack/retriever/dense.py
@@ -179,7 +179,7 @@ class DensePassageRetriever(BaseRetriever):
         """
 
 
-        dataset, tensor_names, baskets = self.processor.dataset_from_dicts(
+        dataset, tensor_names, problematic_ids, baskets = self.processor.dataset_from_dicts(
             dicts, indices=[i for i in range(len(dicts))], return_baskets=True
         )
 
diff --git a/haystack/summarizer/transformers.py b/haystack/summarizer/transformers.py
index 9e7a237ca..329468d2a 100644
--- a/haystack/summarizer/transformers.py
+++ b/haystack/summarizer/transformers.py
@@ -2,6 +2,8 @@ import logging
 from typing import Any, Dict, List, Optional
 
 from transformers import pipeline
+from transformers.models.auto.modeling_auto import AutoModelForSeq2SeqLM
+from transformers import AutoTokenizer
 
 from haystack import Document
 from haystack.summarizer.base import BaseSummarizer
@@ -73,7 +75,11 @@ class TransformersSummarizer(BaseSummarizer):
                                              into a single text. This separator appears between those subsequent docs.
         """
 
-        self.summarizer = pipeline("summarization", model=model_name_or_path, tokenizer=tokenizer, device=use_gpu)
+        # TODO AutoModelForSeq2SeqLM is only necessary with transformers==4.1.1, with newer versions use the pipeline directly
+        if tokenizer is None:
+            tokenizer = model_name_or_path
+        model = AutoModelForSeq2SeqLM.from_pretrained(pretrained_model_name_or_path=model_name_or_path)
+        self.summarizer = pipeline("summarization", model=model, tokenizer=tokenizer, device=use_gpu)
         self.max_length = max_length
         self.min_length = min_length
         self.clean_up_tokenization_spaces = clean_up_tokenization_spaces
diff --git a/requirements.txt b/requirements.txt
index a279ab8a3..83a77c027 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-farm==0.5.0
+farm==0.6.2
 --find-links=https://download.pytorch.org/whl/torch_stable.html
 fastapi
 uvicorn
diff --git a/test/test_dpr_retriever.py b/test/test_dpr_retriever.py
index 9433ed4dc..40f7ab4d5 100644
--- a/test/test_dpr_retriever.py
+++ b/test/test_dpr_retriever.py
@@ -113,6 +113,6 @@ def test_dpr_saving_and_loading(retriever, document_store):
     assert loaded_retriever.query_tokenizer.do_lower_case == True
     assert loaded_retriever.passage_tokenizer.vocab_size == 30522
     assert loaded_retriever.query_tokenizer.vocab_size == 30522
-    assert loaded_retriever.passage_tokenizer.max_len == 512
-    assert loaded_retriever.query_tokenizer.max_len == 512
+    assert loaded_retriever.passage_tokenizer.model_max_length == 512
+    assert loaded_retriever.query_tokenizer.model_max_length == 512