diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4abd5d8..4d1ef14 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,32 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [Unreleased]
-	* Fixed #77 - Unexpected type conversion in buckets
-	* Fixed #78 - load_state does not await bootstrap
+## Verson 2.2.1 (2020-05-02)
+
+### Enhancements
+ * update tests without unittest only pytest (#62)
+ * added additional docs to `Node` to reduce confusion noted in #73
+
+### Bug Fixes
+ * Fixed unexpected type conversion in buckets (#77)
+ * Fixed issue with load_state not awaiting bootstrap (#78)
+ * Fixed `KBucket.replacement_nodes` is never pruned (#79)
+
+## Verson 2.2 (2019-02-04)
+minor version update to handle long_description_content_type for pypi
+
+## Verson 2.1 (2019-02-04)
+
+### Bug Fixes
+ * `KBucket.remove_node` removes nodes in replacement_nodes. (#66)
+ * Improve `KBucket.split` (#65)
+ * refacto(storage): use '@abstractmethod' instead of 'raise NotImplementedError' in Storage Interface (#61)
+ * Asynchronous Server listening (#58) (#60)
+
+## Version 2.0 (2019-01-09)
+
+### Bug Fixes
+ * Removed unused imports
+
+### Deprecations
+ * Removed all camelcase naming
diff --git a/README.md b/README.md
index 63aabe8..e60c152 100644
--- a/README.md
+++ b/README.md
@@ -24,23 +24,24 @@ Assuming you want to connect to an existing network:
 import asyncio
 from kademlia.network import Server
 
-loop = asyncio.get_event_loop()
+async def run():
+    # Create a node and start listening on port 5678
+    node = Server()
+    await node.listen(5678)
 
-# Create a node and start listening on port 5678
-node = Server()
-loop.run_until_complete(node.listen(5678))
+    # Bootstrap the node by connecting to other known nodes, in this case
+    # replace 123.123.123.123 with the IP of another node and optionally
+    # give as many ip/port combos as you can for other nodes.
+    await node.bootstrap([("123.123.123.123", 5678)])
 
-# Bootstrap the node by connecting to other known nodes, in this case
-# replace 123.123.123.123 with the IP of another node and optionally
-# give as many ip/port combos as you can for other nodes.
-loop.run_until_complete(node.bootstrap([("123.123.123.123", 5678)]))
+    # set a value for the key "my-key" on the network
+    await node.set("my-key", "my awesome value")
 
-# set a value for the key "my-key" on the network
-loop.run_until_complete(node.set("my-key", "my awesome value"))
+    # get the value associated with "my-key" from the network
+    result = await node.get("my-key")
+    print(result)
 
-# get the value associated with "my-key" from the network
-result = loop.run_until_complete(node.get("my-key"))
-print(result)
+asyncio.run(run())
 ```
 
 ## Initializing a Network
@@ -64,7 +65,7 @@ To run tests:
 
 ```
 pip install -r dev-requirements.txt
-python -m unittest
+pytest
 ```
 
 ## Reporting Issues
diff --git a/dev-requirements.txt b/dev-requirements.txt
index 5a03bfd..dbb3efc 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -1,8 +1,6 @@
-pycodestyle>=2.4.0
-pylint>=2.2.2
-sphinx>=1.6.5
-sphinxcontrib-napoleon>=0.6.1
-sphinxcontrib-zopeext>=0.2.1
-pytest>=4.1.0
-pytest-asyncio>=0.10.0
-pytest-cov>=2.6.1
+pycodestyle>=2.5.0
+pylint>=2.5.0
+sphinx>=3.0.3
+pytest>=5.4.1
+pytest-asyncio>=0.11.0
+pytest-cov>=2.8.1
diff --git a/docs/_static/.gitkeep b/docs/_static/.gitkeep
deleted file mode 100644
index e69de29..0000000
diff --git a/docs/conf.py b/docs/conf.py
index 6092ae7..776dde6 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -32,8 +32,7 @@ extensions = [
     'sphinx.ext.autodoc',
     'sphinx.ext.todo',
     'sphinx.ext.viewcode',
-    'sphinxcontrib.napoleon',
-    'sphinxcontrib.zopeext.autointerface'
+    'sphinx.ext.napoleon'
 ]
 
 # Add any paths that contain templates here, relative to this directory.
diff --git a/docs/intro.rst b/docs/intro.rst
index 07110a4..72fec08 100644
--- a/docs/intro.rst
+++ b/docs/intro.rst
@@ -26,12 +26,9 @@ Running Tests
 To run tests::
 
   $ pip install -r dev-requirements.txt
-  $ python -m unittest
+  $ pytest
 
 
 Fidelity to Original Paper
 ==========================
 The current implementation should be an accurate implementation of all aspects of the paper except one - in Section 2.3 there is the requirement that the original publisher of a key/value republish it every 24 hours.  This library does not do this (though you can easily do this manually).
-
-
-.. _Twisted: https://twistedmatrix.com
diff --git a/examples/get.py b/examples/get.py
index ef6f56f..9e1e72d 100644
--- a/examples/get.py
+++ b/examples/get.py
@@ -15,15 +15,14 @@ log = logging.getLogger('kademlia')
 log.addHandler(handler)
 log.setLevel(logging.DEBUG)
 
-loop = asyncio.get_event_loop()
-loop.set_debug(True)
+async def run():
+    server = Server()
+    await server.listen(8469)
+    bootstrap_node = (sys.argv[1], int(sys.argv[2]))
+    await server.bootstrap([bootstrap_node])
 
-server = Server()
-loop.run_until_complete(server.listen(8469))
-bootstrap_node = (sys.argv[1], int(sys.argv[2]))
-loop.run_until_complete(server.bootstrap([bootstrap_node]))
-result = loop.run_until_complete(server.get(sys.argv[3]))
-server.stop()
-loop.close()
+    result = await server.get(sys.argv[3])
+    print("Get result:", result)
+    server.stop()
 
-print("Get result:", result)
+asyncio.run(run())
diff --git a/examples/set.py b/examples/set.py
index 22160fb..56336ae 100644
--- a/examples/set.py
+++ b/examples/set.py
@@ -15,13 +15,12 @@ log = logging.getLogger('kademlia')
 log.addHandler(handler)
 log.setLevel(logging.DEBUG)
 
-loop = asyncio.get_event_loop()
-loop.set_debug(True)
+async def run():
+    server = Server()
+    await server.listen(8469)
+    bootstrap_node = (sys.argv[1], int(sys.argv[2]))
+    await server.bootstrap([bootstrap_node])
+    await server.set(sys.argv[3], sys.argv[4])
+    server.stop()
 
-server = Server()
-loop.run_until_complete(server.listen(8469))
-bootstrap_node = (sys.argv[1], int(sys.argv[2]))
-loop.run_until_complete(server.bootstrap([bootstrap_node]))
-loop.run_until_complete(server.set(sys.argv[3], sys.argv[4]))
-server.stop()
-loop.close()
+asyncio.run(run())
diff --git a/kademlia/__init__.py b/kademlia/__init__.py
index c0fd4b4..9d7a451 100644
--- a/kademlia/__init__.py
+++ b/kademlia/__init__.py
@@ -2,4 +2,4 @@
 Kademlia is a Python implementation of the Kademlia protocol which
 utilizes the asyncio library.
 """
-__version__ = "2.2"
+__version__ = "2.2.1"
diff --git a/kademlia/network.py b/kademlia/network.py
index debd946..12eb5dc 100644
--- a/kademlia/network.py
+++ b/kademlia/network.py
@@ -33,8 +33,8 @@ class Server:
             ksize (int): The k parameter from the paper
             alpha (int): The alpha parameter from the paper
             node_id: The id for this node on the network.
-            storage: An instance that implements
-                     :interface:`~kademlia.storage.IStorage`
+            storage: An instance that implements the interface
+                     :class:`~kademlia.storage.IStorage`
         """
         self.ksize = ksize
         self.alpha = alpha
diff --git a/requirements.txt b/requirements.txt
index 4da0595..3893bdb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1 +1 @@
-rpcudp>=4.0.0
+rpcudp>=4.0.1