diff --git a/src/FlowSOM/main.py b/src/FlowSOM/main.py
index 98c1f02..86a8512 100644
--- a/src/FlowSOM/main.py
+++ b/src/FlowSOM/main.py
@@ -13,10 +13,9 @@
 from scipy.stats import median_abs_deviation
 from sklearn.base import check_is_fitted
 
+from flowsom.io import read_csv, read_FCS
 from flowsom.models.flowsom_estimator import FlowSOMEstimator
-
-from .io import read_csv, read_FCS
-from .tl import get_channels, get_markers
+from flowsom.tl import get_channels, get_markers
 
 
 class FlowSOM:
diff --git a/src/FlowSOM/models/__init__.py b/src/FlowSOM/models/__init__.py
index fc99122..7133ef6 100644
--- a/src/FlowSOM/models/__init__.py
+++ b/src/FlowSOM/models/__init__.py
@@ -1,6 +1,6 @@
-from flowsom.models._som import SOM, map_data_to_codes
-from flowsom.models.base_cluster_estimator import BaseClusterEstimator
-from flowsom.models.base_flowsom_estimator import BaseFlowSOMEstimator
-from flowsom.models.consensus_cluster import ConsensusCluster
-from flowsom.models.flowsom_estimator import FlowSOMEstimator
-from flowsom.models.som_estimator import SOMEstimator
+from ._som import SOM, map_data_to_codes  # isort:skip
+from .base_cluster_estimator import BaseClusterEstimator  # isort:skip
+from .som_estimator import SOMEstimator  # isort:skip
+from .base_flowsom_estimator import BaseFlowSOMEstimator  # isort:skip
+from .consensus_cluster import ConsensusCluster
+from .flowsom_estimator import FlowSOMEstimator
diff --git a/src/FlowSOM/models/base_flowsom_estimator.py b/src/FlowSOM/models/base_flowsom_estimator.py
index e497507..d49d4e5 100644
--- a/src/FlowSOM/models/base_flowsom_estimator.py
+++ b/src/FlowSOM/models/base_flowsom_estimator.py
@@ -1,6 +1,6 @@
 from sklearn.utils.validation import check_is_fitted
 
-from flowsom.models import BaseClusterEstimator
+from . import BaseClusterEstimator
 
 
 class BaseFlowSOMEstimator(BaseClusterEstimator):
diff --git a/src/FlowSOM/models/consensus_cluster.py b/src/FlowSOM/models/consensus_cluster.py
index 8cf921a..95a5da4 100644
--- a/src/FlowSOM/models/consensus_cluster.py
+++ b/src/FlowSOM/models/consensus_cluster.py
@@ -14,7 +14,7 @@
 import numpy as np
 from sklearn.cluster import AgglomerativeClustering
 
-from flowsom.models import BaseClusterEstimator
+from . import BaseClusterEstimator
 
 
 class ConsensusCluster(BaseClusterEstimator):
diff --git a/src/FlowSOM/models/flowsom_estimator.py b/src/FlowSOM/models/flowsom_estimator.py
index b141c40..f88c620 100644
--- a/src/FlowSOM/models/flowsom_estimator.py
+++ b/src/FlowSOM/models/flowsom_estimator.py
@@ -1,5 +1,4 @@
-from flowsom.models import ConsensusCluster, SOMEstimator
-from flowsom.models.base_flowsom_estimator import BaseFlowSOMEstimator
+from . import BaseFlowSOMEstimator, ConsensusCluster, SOMEstimator
 
 
 class FlowSOMEstimator(BaseFlowSOMEstimator):
diff --git a/src/FlowSOM/models/som_estimator.py b/src/FlowSOM/models/som_estimator.py
index adf42af..e313e68 100644
--- a/src/FlowSOM/models/som_estimator.py
+++ b/src/FlowSOM/models/som_estimator.py
@@ -3,7 +3,7 @@
 from scipy.spatial.distance import cdist, pdist, squareform
 from sklearn.utils.validation import check_is_fitted
 
-from flowsom.models import SOM, BaseClusterEstimator, map_data_to_codes
+from . import SOM, BaseClusterEstimator, map_data_to_codes
 
 
 class SOMEstimator(BaseClusterEstimator):