diff --git a/requirements.txt b/requirements.txt
index 0cc7bf495..f83c89d00 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,21 +2,21 @@
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
 
-pbr<2.0,>=1.3
-Babel>=1.3
-Flask<1.0,>=0.10
-iso8601>=0.1.9
-oslo.config>=1.11.0 # Apache-2.0
-oslo.i18n>=1.5.0 # Apache-2.0
-oslo.log>=1.8.0 # Apache-2.0
-oslo.serialization>=1.4.0 # Apache-2.0
-oslo.utils>=1.9.0 # Apache-2.0
-paramiko>=1.13.0
-psutil<2.0.0,>=1.1.1
+pbr>=2.0.0 # Apache-2.0
+Babel>=2.3.4 # BSD
+Flask!=0.11,<1.0,>=0.10 # BSD
+iso8601>=0.1.11 # MIT
+oslo.config>=3.22.0 # Apache-2.0
+oslo.i18n>=2.1.0 # Apache-2.0
+oslo.log>=3.22.0 # Apache-2.0
+oslo.serialization>=1.10.0 # Apache-2.0
+oslo.utils>=3.20.0 # Apache-2.0
+paramiko>=2.0 # LGPLv2.1+
+psutil>=3.2.2 # BSD
 PyGithub
-python-memcached>=1.56
-PyYAML>=3.1.0
-requests>=2.5.2
+python-memcached>=1.56 # PSF
+PyYAML>=3.10.0 # MIT
+requests!=2.12.2,!=2.13.0,>=2.10.0 # Apache-2.0
 requests-file
 sh
-six>=1.9.0
+six>=1.9.0 # MIT
diff --git a/setup.py b/setup.py
index d8080d05c..566d84432 100644
--- a/setup.py
+++ b/setup.py
@@ -25,5 +25,5 @@ except ImportError:
     pass
 
 setuptools.setup(
-    setup_requires=['pbr>=1.3'],
+    setup_requires=['pbr>=2.0.0'],
     pbr=True)
diff --git a/stackalytics/processor/main.py b/stackalytics/processor/main.py
index fad5406fd..60b9a5505 100644
--- a/stackalytics/processor/main.py
+++ b/stackalytics/processor/main.py
@@ -41,13 +41,11 @@ LOG = logging.getLogger(__name__)
 
 
 def get_pids():
-    # needs to be compatible with psutil >= 1.1.1 since it's a global req.
-    PSUTIL2 = psutil.version_info >= (2, 0)
     result = set([])
-    for pid in psutil.get_pid_list():
+    for pid in psutil.pids():
         try:
             p = psutil.Process(pid)
-            name = p.name() if PSUTIL2 else p.name
+            name = p.name()
             if name == 'uwsgi':
                 LOG.debug('Found uwsgi process, pid: %s', pid)
                 result.add(pid)
diff --git a/test-requirements.txt b/test-requirements.txt
index ae37e0903..2d812958a 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -3,13 +3,13 @@
 # process, which may cause wedges in the gate later.
 
 # Hacking already pins down pep8, pyflakes and flake8
-hacking>=0.12.0,!=0.13.0,<0.14  # Apache-2.0
-coverage>=3.6
-fixtures>=1.3.1
-jsonschema!=2.5.0,<3.0.0,>=2.0.0
-mock>=1.2
-python-subunit>=0.0.18
-sphinx!=1.2.0,!=1.3b1,<1.3,>=1.1.2
-sphinxcontrib-httpdomain
-testrepository>=0.0.18
-testtools>=1.4.0
+hacking!=0.13.0,<0.14,>=0.12.0 # Apache-2.0
+coverage>=4.0 # Apache-2.0
+fixtures>=3.0.0 # Apache-2.0/BSD
+jsonschema!=2.5.0,<3.0.0,>=2.0.0 # MIT
+mock>=2.0 # BSD
+python-subunit>=0.0.18 # Apache-2.0/BSD
+sphinx>=1.5.1 # BSD
+sphinxcontrib-httpdomain # BSD
+testrepository>=0.0.18 # Apache-2.0/BSD
+testtools>=1.4.0 # MIT