diff --git a/setup.py b/setup.py
index 086e18c..82fdfa8 100755
--- a/setup.py
+++ b/setup.py
@@ -33,7 +33,7 @@
         'ndx-bipolar-scheme',
         'tqdm',
         'pyopengl',
-        'process_nwb',
+        'process_nwb==0.1.0',
         'PyQtWebEngine',
         'ndx-icephys-meta',
         'ndx-hierarchical-behavioral-data'],