diff --git a/setup.py b/setup.py
index 33de406b..abbaed4a 100644
--- a/setup.py
+++ b/setup.py
@@ -79,14 +79,15 @@
     version=versioneer.get_version(),
     cmdclass=versioneer.get_cmdclass(),
     install_requires=[
-        'numpy>=1.6', 
-        'neo>=0.5.2', 
-        'typing-extensions>=4.8.0', 
+        'numpy>=1.6',
+        'neo>=0.5.2',
+        'pynwb>2.6.0'
+        'typing-extensions>=4.8.0',
         'scipy>=1.12.0,<2.0.0',
     ],
     packages=[
-        'efel', 
-        'efel.pyfeatures', 
+        'efel',
+        'efel.pyfeatures',
         'efel.units'
     ],
     author="BlueBrain Project, EPFL",