diff --git a/appveyor.yml b/appveyor.yml
index 9a1463a9f7..f51bf0c3f8 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -66,7 +66,7 @@ test_script:
   # installed library.
   - "mkdir empty_folder"
   - "cd empty_folder"
-  - "pip install pyemd testfixtures unittest2 sklearn Morfessor==2.0.2a4"
+  - "pip install pyemd testfixtures sklearn Morfessor==2.0.2a4"
   - "pip freeze"
   - "python -c \"import nose; nose.main()\" -s -v gensim"
   # Move back to the project folder
diff --git a/gensim/test/test_ldamallet_wrapper.py b/gensim/test/test_ldamallet_wrapper.py
index 22d31d02e8..9fec0e8605 100644
--- a/gensim/test/test_ldamallet_wrapper.py
+++ b/gensim/test/test_ldamallet_wrapper.py
@@ -10,7 +10,7 @@
 
 
 import logging
-import unittest2 as unittest
+import unittest
 import os
 import os.path
 import tempfile
diff --git a/gensim/test/test_sharded_corpus.py b/gensim/test/test_sharded_corpus.py
index cb44c7a632..d50f618384 100644
--- a/gensim/test/test_sharded_corpus.py
+++ b/gensim/test/test_sharded_corpus.py
@@ -3,12 +3,6 @@
 """
 import os
 
-# For backwards compatibility with setUpClass and tearDownClass:
-# import sys
-# if sys.version_info[0] == 2 and sys.version_info[1] <= 6:
-#     import unittest2 as unittest
-# else:
-#     import unittest
 import unittest
 
 import random
diff --git a/gensim/test/test_varembed_wrapper.py b/gensim/test/test_varembed_wrapper.py
index 919707bd79..5b83bbf50b 100644
--- a/gensim/test/test_varembed_wrapper.py
+++ b/gensim/test/test_varembed_wrapper.py
@@ -16,10 +16,7 @@
 
 import numpy as np
 
-if sys.version_info < (2, 7):
-    import unittest2 as unittest
-else:
-    import unittest
+import unittest
 
 from gensim.models.wrappers import varembed
 
diff --git a/setup.py b/setup.py
index 2c7492cf0b..9eb7bcd695 100644
--- a/setup.py
+++ b/setup.py
@@ -228,7 +228,6 @@ def finalize_options(self):
 
 test_env = [
     'testfixtures',
-    'unittest2',
     'Morfessor == 2.0.2a4',
     'scikit-learn',
     'pyemd',