diff --git a/.travis.yml b/.travis.yml
index 37fd50f..d64a97b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,9 +2,7 @@ language: python
 python: 3.5
 env:
   matrix:
-    - TOXENV=py26
     - TOXENV=py27
-    - TOXENV=py33
     - TOXENV=py34
     - TOXENV=py35
     - TOXENV=coverage
diff --git a/README.rst b/README.rst
index b3cfc22..ff280e9 100644
--- a/README.rst
+++ b/README.rst
@@ -123,7 +123,7 @@ If you want to insert fixtures to the cached database, use ``initdb_handler`` op
 
 Requirements
 ============
-* Python 2.6, 2.7, 3.2, 3.3, 3.4, 3.5
+* Python 2.7, 3.4, 3.5, 3.6
 * pg8000 1.10
 
 License
diff --git a/src/testing/postgresql.py b/src/testing/postgresql.py
index 948fc3c..592f707 100644
--- a/src/testing/postgresql.py
+++ b/src/testing/postgresql.py
@@ -28,6 +28,7 @@
 __all__ = ['Postgresql', 'skipIfNotFound']
 
 SEARCH_PATHS = (['/usr/local/pgsql', '/usr/local'] +
+                glob('/usr/pgsql-*') +  # for CentOS/RHEL
                 glob('/usr/lib/postgresql/*') +  # for Debian/Ubuntu
                 glob('/opt/local/lib/postgresql*'))  # for MacPorts
 
@@ -113,7 +114,7 @@ def is_server_available(self):
 
     def terminate(self, *args):
         # send SIGINT instead of SIGTERM
-        super(Postgresql, self).terminate(signal.SIGINT)
+        super(Postgresql, self).terminate(signal.SIGINT if os.name != 'nt' else None)
 
 
 class PostgresqlFactory(DatabaseFactory):
diff --git a/tests/test_postgresql.py b/tests/test_postgresql.py
index b3603a2..1fa1116 100644
--- a/tests/test_postgresql.py
+++ b/tests/test_postgresql.py
@@ -1,9 +1,9 @@
 # -*- coding: utf-8 -*-
 
 import os
-import sys
 import signal
 import tempfile
+import unittest
 import testing.postgresql
 from time import sleep
 from shutil import rmtree
@@ -12,11 +12,6 @@
 import sqlalchemy
 from contextlib import closing
 
-if sys.version_info < (2, 7):
-    import unittest2 as unittest
-else:
-    import unittest
-
 
 class TestPostgresql(unittest.TestCase):
     def test_basic(self):
@@ -116,6 +111,7 @@ def test_postgresql_is_not_found(self):
             testing.postgresql.SEARCH_PATHS = search_paths
             os.environ['PATH'] = path_env
 
+    @unittest.skipIf(os.name == 'nt', 'Windows does not have fork()')
     def test_fork(self):
         pgsql = testing.postgresql.Postgresql()
         if os.fork() == 0:
@@ -127,6 +123,7 @@ def test_fork(self):
             sleep(1)
             self.assertTrue(pgsql.is_alive())  # process is alive (delete pgsql obj in child does not effect)
 
+    @unittest.skipIf(os.name == 'nt', 'Windows does not have fork()')
     def test_stop_on_child_process(self):
         pgsql = testing.postgresql.Postgresql()
         if os.fork() == 0:
diff --git a/tox.ini b/tox.ini
index c2d340c..41a7468 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist=py26,py27,py32,py33,py34,py35
+envlist=py27,py34,py35,py36
 
 [testenv]
 deps=
@@ -13,11 +13,6 @@ commands=
     nosetests
     flake8 --exclude=.tox/
 
-[testenv:py26]
-deps=
-    {[testenv]deps}
-    unittest2
-
 [testenv:coverage]
 deps=
     {[testenv]deps}