diff --git a/MANIFEST.in b/MANIFEST.in
new file mode 100644
index 0000000..29721a5
--- /dev/null
+++ b/MANIFEST.in
@@ -0,0 +1,4 @@
+include LICENSE
+include requirements.txt
+
+graft docs
diff --git a/requirements.txt b/requirements.txt
index 2b610ba..0f9e03a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
 # sha256: UI5KRMglOjhqD4bZyb1KG0y7L5TojUmhnBUTZTymbEU
-psutil==1.2.1
+psutil>=1.2.1
 
diff --git a/setup.py b/setup.py
index a4cd216..f21bc75 100644
--- a/setup.py
+++ b/setup.py
@@ -125,10 +125,8 @@ greater.
         "Programming Language :: Python :: 3",
         "Programming Language :: Python :: 2.6",
         "Programming Language :: Python :: 2.7",
-        "Programming Language :: Python :: 3.0",
-        "Programming Language :: Python :: 3.1",
-        "Programming Language :: Python :: 3.2",
-        "Topic :: Software Development :: Libraries :: Python Modules",
+        "Programming Language :: Python :: 3.3",
+        "Programming Language :: Python :: 3.4",
         "Topic :: Security :: Cryptography",
         "Topic :: Software Development :: Libraries :: Python Modules",
         "Topic :: Utilities",]