diff --git a/.circleci/config.yml b/.circleci/config.yml
index f7c3b82..240b954 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -57,6 +57,25 @@ jobs:
           path: test-results
       - store_artifacts:
           path: test-results
+  build38:
+    docker:
+      - image: circleci/python:3.8
+    steps:
+      - checkout
+      - run: sudo chown -R circleci:circleci /usr/local/bin
+      - run: sudo chown -R circleci:circleci /usr/local/lib/python3.8/site-packages
+      - run:
+          command: |
+            sudo pip install -r requirements.txt
+            sudo pip install -r dev_requirements.txt
+      - run:
+          command: |
+            mkdir test-reports
+            pytest --junitxml=test-reports/junit.xml
+      - store_test_results:
+          path: test-results
+      - store_artifacts:
+          path: test-results
 
 workflows:
   version: 2
@@ -64,4 +83,5 @@ workflows:
     jobs:
       - build35
       - build36
-      - build37
\ No newline at end of file
+      - build37
+      - build38
\ No newline at end of file
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 72a37cd..8b6cd74 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -1,6 +1,15 @@
 Changelog
 =========
 
+.. _v0-3-1:
+
+0.3.1 - 2020-03-03
+~~~~~~~~~~~~~~~~~~
+
+* Fixed deprecation warnings and/or breakage for 448/25519 due to Cryptography changes - contributed by @warner
+* Bumped required Cryptography to 2.8
+* CI/CD testing added for Python 3.8
+      
 .. _v0-3-0:
 
 0.3.0 - 2019-02-24 
diff --git a/requirements.txt b/requirements.txt
index 34d60e5..06289bd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1 +1 @@
-cryptography>=2.5
+cryptography>=2.8
diff --git a/setup.py b/setup.py
index 964f35d..3139617 100644
--- a/setup.py
+++ b/setup.py
@@ -13,7 +13,7 @@ except (IOError, ImportError):
 
 setup(
     name='noiseprotocol',
-    version='0.3.0',
+    version='0.3.1',
     description='Implementation of Noise Protocol Framework',
     long_description=long_description,
     url='https://github.com/plizonczyk/noiseprotocol',
@@ -28,13 +28,14 @@ setup(
         'Programming Language :: Python :: 3',
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
-        # 'Programming Language :: Python :: 3.7',
+        'Programming Language :: Python :: 3.7',
+        'Programming Language :: Python :: 3.8',
         'Operating System :: MacOS :: MacOS X',
         'Operating System :: Microsoft :: Windows',
         'Operating System :: POSIX :: Linux'
     ],
     keywords='cryptography noiseprotocol noise security',
     packages=find_packages(exclude=['contrib', 'docs', 'tests', 'examples']),
-    install_requires=['cryptography>=2.5'],
+    install_requires=['cryptography>=2.8'],
     python_requires='~=3.5',  # we like 3.5, 3.6, and beyond, but not 4.0
 )