diff --git a/.travis.yml b/.travis.yml
index 42adb75..5d486ff 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,11 +5,15 @@ python:
   - "3.6-dev"  # 3.6 development branch
   - "3.7"
   - "3.7-dev"  # 3.7 development branch
+  - "3.8"
+  - "3.8-dev"  # 3.8 development branch
+
 # command to install dependencies
 install:
   - pip install -U pip wheel setuptools
   - pip install -r requirements.txt
   - pip install -e .
+
 # command to run tests
 script:
   - isort -c --skip-glob=venv
diff --git a/requirements.txt b/requirements.txt
index de23800..8fa623e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,4 @@
 dnspython==1.16.0
 idna==2.8
+isort==4.3.21
+flake8==3.7.8