diff --git a/bluecellulab/cell/serialized_sections.py b/bluecellulab/cell/serialized_sections.py
index aea59d4b..c0e54686 100644
--- a/bluecellulab/cell/serialized_sections.py
+++ b/bluecellulab/cell/serialized_sections.py
@@ -14,11 +14,13 @@
 """Module that allows morphology sections to be accessed from an array by
 index."""
 
+import logging
 import warnings
 import neuron
 from bluecellulab.type_aliases import HocObjectType
 
 
+logger = logging.getLogger(__name__)
 warnings.filterwarnings("once", category=UserWarning, module=__name__)
 
 
@@ -31,7 +33,7 @@ def __init__(self, cell: HocObjectType) -> None:
         for index, sec in enumerate(cell.all, start=1):
             v_value = sec(0.0001).v
             if v_value >= n:
-                print(f"{sec.name()} v(1)={sec(1).v} n3d()={sec.n3d()}")
+                logging.debug(f"{sec.name()} v(1)={sec(1).v} n3d()={sec.n3d()}")
                 raise ValueError("Error: failure in mk2_isec2sec()")
 
             if v_value < 0:
diff --git a/bluecellulab/importer.py b/bluecellulab/importer.py
index 1e85932a..c4149ed6 100644
--- a/bluecellulab/importer.py
+++ b/bluecellulab/importer.py
@@ -13,14 +13,19 @@
 # limitations under the License.
 """Main importer of bluecellulab."""
 
+import logging
 import os
 from types import ModuleType
 import pkg_resources
+
 import neuron
 
 from bluecellulab.exceptions import BluecellulabError
 
 
+logger = logging.getLogger(__name__)
+
+
 def import_mod_lib(neuron: ModuleType) -> str:
     """Import mod files."""
     res = ""
@@ -62,8 +67,8 @@ def import_neurodamus(neuron: ModuleType) -> None:
 
 def print_header(neuron: ModuleType, mod_lib_path: str) -> None:
     """Print bluecellulab header to stdout."""
-    print("Imported NEURON from: %s" % neuron.__file__)
-    print('Mod lib: ', mod_lib_path)
+    logger.info("Imported NEURON from: %s" % neuron.__file__)
+    logger.info('Mod lib: ', mod_lib_path)
 
 
 mod_lib_paths = import_mod_lib(neuron)