diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
deleted file mode 100644
index 0e47e9a0..00000000
--- a/.github/workflows/test.yml
+++ /dev/null
@@ -1,49 +0,0 @@
-name: Test
-
-on:
-  push:
-  pull_request:
-    types: [opened, synchronize, reopened]
-
-jobs:
-  test:
-
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        python-version: [3.6, 3.7, 3.8]
-
-    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: |
-          sudo apt update
-          sudo apt install espeak git
-      - name: Upgrade pip
-        # so we can take advantage of pyproject.toml build-dependency support
-        run: python3 -m pip install --upgrade pip
-      - name: Install TTS
-        run: |
-          python3 -m pip install .
-          python3 setup.py egg_info
-      - name: Lint check
-        run: |
-          python3 -m pip install --quiet --upgrade cardboardlint pylint
-          cardboardlinter --refspec ${GITHUB_BASE_REF} -n auto
-      - name: Unit tests
-        run: nosetests tests --nocapture
-      - name: Test scripts
-        run: |
-          ./tests/test_server_package.sh
-          ./tests/test_glow-tts_train.sh
-          ./tests/test_server_package.sh
-          ./tests/test_tacotron_train.sh
-          ./tests/test_vocoder_gan_train.sh
-          ./tests/test_vocoder_wavegrad_train.sh
-          ./tests/test_vocoder_wavernn_train.sh
-
diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 00000000..28500a81
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,32 @@
+language: python
+
+git:
+  quiet: true
+
+before_install:
+  - sudo apt-get update
+  - sudo apt-get -y install espeak
+  - python -m pip install --upgrade pip
+  - pip install six==1.12.0
+  - pip install --upgrade cython
+
+matrix:
+  include:
+  - name: "Lint check"
+    python: "3.6"
+    install: pip install --quiet --upgrade cardboardlint pylint
+    env: TEST_SUITE="lint"
+  - name: "Unit tests"
+    python: "3.6"
+    install:
+      - python setup.py egg_info
+      - pip install -e .
+    env: TEST_SUITE="unittest"
+  - name: "Unit tests"
+    python: "3.6"
+    install:
+      - python setup.py egg_info
+      - pip install -e .
+    env: TEST_SUITE="testscripts"
+
+script: ./.travis/script
diff --git a/.travis/script b/.travis/script
new file mode 100755
index 00000000..0860f9cf
--- /dev/null
+++ b/.travis/script
@@ -0,0 +1,22 @@
+#!/bin/bash
+set -ex
+
+git remote set-branches --add origin $TRAVIS_BRANCH
+git fetch
+
+if [[ ( "$TRAVIS_PULL_REQUEST" != "false" ) && ( "$TEST_SUITE" == "lint" ) ]]; then
+  # Run cardboardlinter, in case of pull requests
+  cardboardlinter --refspec origin/$TRAVIS_BRANCH -n auto
+fi
+
+if [[ "$TEST_SUITE" == "unittest" ]]; then
+  nosetests tests --nocapture
+  ./tests/test_server_package.sh
+fi
+
+if [[ "$TEST_SUITE" == "testscripts" ]]; then
+   # test model training scripts
+  ./tests/test_tts_train.sh
+  ./tests/test_vocoder_gan_train.sh
+  ./tests/test_vocoder_wavernn_train.sh
+fi
diff --git a/pyproject.toml b/pyproject.toml
deleted file mode 100644
index 997b713f..00000000
--- a/pyproject.toml
+++ /dev/null
@@ -1,2 +0,0 @@
-[build-system]
-requires = ["setuptools", "wheel", "Cython", "numpy>=1.16.0,<1.20"]
diff --git a/requirements.txt b/requirements.txt
index e9af491f..31b49916 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,6 @@
 torch>=1.5
 tensorflow==2.3.1
-numpy>=1.16.0; python_version >= "3.7"
-numpy>=1.16.0,<1.20; python_version < "3.7"
+numpy>=1.16.0
 scipy>=0.19.0
 numba==0.48
 librosa==0.7.2
@@ -19,8 +18,8 @@ pysbd
 pyworld
 soundfile
 nose==1.3.7
-cardboardlint
-pylint
+cardboardlint==1.3.0
+pylint==2.5.3
 gdown
 umap-learn
 cython
diff --git a/tests/test_server_package.sh b/tests/test_server_package.sh
index 0b3395a7..7e75415a 100755
--- a/tests/test_server_package.sh
+++ b/tests/test_server_package.sh
@@ -7,26 +7,24 @@ if [[ ! -f tests/outputs/checkpoint_10.pth.tar ]]; then
 fi
 
 rm -f dist/*.whl
-python3 setup.py --quiet bdist_wheel --checkpoint tests/outputs/checkpoint_10.pth.tar --model_config tests/outputs/dummy_model_config.json
+python setup.py --quiet bdist_wheel --checkpoint tests/outputs/checkpoint_10.pth.tar --model_config tests/outputs/dummy_model_config.json
 
-python3 -m venv /tmp/venv
+python -m venv /tmp/venv
 source /tmp/venv/bin/activate
-python3 -m pip install --quiet --upgrade pip setuptools wheel cython
-# wait to install numpy until we have wheel support
-python3 -m pip install numpy
-python3 -m pip install --quiet dist/TTS*.whl
+pip install --quiet --upgrade pip setuptools wheel
+pip install --quiet dist/TTS*.whl
 
 # this is related to https://github.com/librosa/librosa/issues/1160
-python3 -m pip install numba==0.48
+pip install numba==0.48
 
-python3 -m TTS.server.server &
+python -m TTS.server.server &
 SERVER_PID=$!
 
 echo 'Waiting for server...'
 sleep 30
 
 curl -o /tmp/audio.wav "http://localhost:5002/api/tts?text=synthesis%20schmynthesis"
-python3 -c 'import sys; import wave; print(wave.open(sys.argv[1]).getnframes())' /tmp/audio.wav
+python -c 'import sys; import wave; print(wave.open(sys.argv[1]).getnframes())' /tmp/audio.wav
 
 kill $SERVER_PID