diff --git a/src/documents/classifier.py b/src/documents/classifier.py
index 9c899cdd8..be2256297 100644
--- a/src/documents/classifier.py
+++ b/src/documents/classifier.py
@@ -59,6 +59,7 @@ def load_classifier():
 
 class DocumentClassifier(object):
 
+    # v7 - Updated scikit-learn package version
     FORMAT_VERSION = 7
 
     def __init__(self):
diff --git a/src/documents/tests/data/model.pickle b/src/documents/tests/data/model.pickle
index 70cb62aa2..e097bda06 100644
Binary files a/src/documents/tests/data/model.pickle and b/src/documents/tests/data/model.pickle differ