diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
new file mode 100644
index 00000000..5a219f01
--- /dev/null
+++ b/.github/workflows/release.yaml
@@ -0,0 +1,44 @@
+# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
+# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
+---
+
+name: release
+
+on:
+  release:
+    types: [released, prereleased]
+
+jobs:
+  build-and-publish:
+    permissions:
+      contents: read
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python_version: ["3.5"]
+        tox_env: ['py35']
+    steps:
+    - uses: actions/checkout@v3
+    - name: "Set up Python ${{ matrix.python_version }}"
+      uses: actions/setup-python@v3
+      with:
+        python-version: ${{ matrix.python_version }}
+    - name: Install dependencies
+      run: python -m pip install --upgrade pip
+    - name: Install building dependencies
+      run: pip install wheel tox
+    - name: Build venv
+      run: |
+        tox -e ${{ matrix.tox_env }} --notest
+    - name: Run
+      run: |
+        rm -rf dist || true
+        .tox/${{ matrix.tox_env }}/bin/python setup.py sdist bdist_wheel
+    - name: Publish a Python distribution to PyPI
+      uses: pypa/gh-action-pypi-publish@release/v1
+      if: github.event_name == 'released'
+      with:
+        user: __token__
+        password: ${{ secrets.PYPI_API_TOKEN }}
+
diff --git a/.github/workflows/unittests.yml b/.github/workflows/unittests.yml
new file mode 100644
index 00000000..90171630
--- /dev/null
+++ b/.github/workflows/unittests.yml
@@ -0,0 +1,31 @@
+# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
+# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
+
+name: Unit tests
+on: pull_request
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - python-version: '2.7'
+            tox_env: 'py27'
+          - python-version: '3.5'
+            tox_env: 'py35'
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v2
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        pip install tox
+        tox -e ${{ matrix.tox_env }} --notest
+    - name: Run
+      run: |
+        tox -e ${{ matrix.tox_env }}
+
diff --git a/constraints-py27.txt b/constraints-py27.txt
index 7238cf1e..8bfc767d 100644
--- a/constraints-py27.txt
+++ b/constraints-py27.txt
@@ -4,8 +4,6 @@
 #
 #    pip-compile --no-emit-trusted-host --no-index --output-file=constraints-py27.txt requirements.txt
 #
--e git+https://github.com/stephanerobert/tftpy.git@master#egg=tftpy
-    # via -r requirements.txt
 appdirs==1.4.4
     # via twisted
 cffi==1.14.5
diff --git a/constraints.txt b/constraints.txt
index 8fc64e93..a881846a 100644
--- a/constraints.txt
+++ b/constraints.txt
@@ -4,11 +4,9 @@
 #
 #    pip-compile --no-emit-trusted-host --no-index --output-file=constraints.txt requirements.txt
 #
--e git+https://github.com/stephanerobert/tftpy.git@master#egg=tftpy
-    # via -r requirements.txt
 appdirs==1.4.4
     # via twisted
-cffi==1.14.5
+cffi==1.15.0
     # via cryptography
 constantly==15.1.0
     # via twisted
@@ -20,13 +18,13 @@ importlib-resources==3.2.1
     # via netaddr
 incremental==21.3.0
     # via twisted
-lxml==4.6.3
+lxml==4.7.1
     # via -r requirements.txt
 netaddr==0.8.0
     # via -r requirements.txt
 pyasn1==0.4.8
     # via twisted
-pycparser==2.20
+pycparser==2.21
     # via cffi
 six==1.16.0
     # via cryptography
diff --git a/setup.cfg b/setup.cfg
index 1afad8f0..72aeffe7 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -5,6 +5,7 @@ author = Internap Hosting
 author-email = opensource@internap.com
 summary = A pluggable switch/router command-line simulator
 description-file = README.md
+description-content-type = text/markdown
 license = Apache Software License
 home-page = https://github.com/internap/fake-switches
 classifier =
@@ -16,6 +17,7 @@ classifier =
     License :: OSI Approved :: Apache Software License
     Operating System :: POSIX
     Programming Language :: Python :: 2.7
+    Programming Language :: Python :: 3.5
     Topic :: Software Development :: Testing
     Topic :: System :: Emulators
 
@@ -34,5 +36,5 @@ no-path-adjustment = 1
 logging-level=DEBUG
 verbosity = 2
 
-[wheel]
+[bdist_wheel]
 universal = 1
diff --git a/test-constraints.txt b/test-constraints.txt
index 5f7386e2..f9a75a45 100644
--- a/test-constraints.txt
+++ b/test-constraints.txt
@@ -4,15 +4,13 @@
 #
 #    pip-compile --no-emit-trusted-host --no-index --output-file=test-constraints.txt constraints.txt test-requirements.txt
 #
--e git+https://github.com/stephanerobert/tftpy.git@master#egg=tftpy
-    # via -r constraints.txt
 appdirs==1.4.4
     # via
     #   -r constraints.txt
     #   twisted
 bcrypt==3.1.7
     # via paramiko
-cffi==1.14.5
+cffi==1.15.0
     # via
     #   -r constraints.txt
     #   bcrypt
@@ -27,7 +25,7 @@ cryptography==2.9.2 ; python_version == "3.5"
     #   -r constraints.txt
     #   paramiko
     #   twisted
-flexmock==0.10.4
+flexmock==0.10.10
     # via -r test-requirements.txt
 importlib-resources==3.2.1
     # via
@@ -37,13 +35,13 @@ incremental==21.3.0
     # via
     #   -r constraints.txt
     #   twisted
-lxml==4.6.3
+lxml==4.7.1
     # via
     #   -r constraints.txt
     #   ncclient
 mock==3.0.5
     # via -r test-requirements.txt
-ncclient==0.6.10
+ncclient==0.6.12
     # via -r test-requirements.txt
 netaddr==0.8.0
     # via
@@ -51,7 +49,7 @@ netaddr==0.8.0
     #   pyeapi
 nose==1.3.7
     # via -r test-requirements.txt
-paramiko==2.7.2
+paramiko==2.8.1
     # via ncclient
 pexpect==4.8.0
     # via -r test-requirements.txt
@@ -61,13 +59,13 @@ pyasn1==0.4.8
     # via
     #   -r constraints.txt
     #   twisted
-pycparser==2.20
+pycparser==2.21
     # via
     #   -r constraints.txt
     #   cffi
 pyeapi==0.8.4
     # via -r test-requirements.txt
-pyhamcrest==2.0.2
+pyhamcrest==1.10.1
     # via -r test-requirements.txt
 pynacl==1.4.0
     # via paramiko
@@ -79,7 +77,7 @@ six==1.16.0
     #   mock
     #   ncclient
     #   pynacl
-twisted[conch]==16.6.0
+twisted==16.6.0
     # via -r constraints.txt
 zipp==1.2.0
     # via
diff --git a/test-requirements.txt b/test-requirements.txt
index 7ed7fd7d..3c50a3a4 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,6 +1,6 @@
 nose>=1.2.1
 mock>=1.0.1
-pyhamcrest>=1.6
+pyhamcrest>=1.6, <2.0.0
 pexpect>=4.2.1
 flexmock>=0.9.7
 ncclient>=0.5.2
diff --git a/tests/util/protocol_util.py b/tests/util/protocol_util.py
index 0e8d7433..56169d74 100644
--- a/tests/util/protocol_util.py
+++ b/tests/util/protocol_util.py
@@ -104,7 +104,7 @@ class SshTester(ProtocolTester):
     CONF_KEY = "ssh"
 
     def get_ssh_connect_command(self):
-        return 'ssh %s@%s -p %s -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null' \
+        return 'ssh %s@%s -p %s -o StrictHostKeyChecking=no -o KexAlgorithms=+diffie-hellman-group1-sha1 -o KexAlgorithms=+diffie-hellman-group14-sha1 -o UserKnownHostsFile=/dev/null' \
                % (self.username, self.host, self.port)
 
     def login(self):