diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
new file mode 100644
index 0000000..23b2eff
--- /dev/null
+++ b/.github/workflows/CI.yml
@@ -0,0 +1,49 @@
+name: CI
+on:
+  pull_request:
+    branches: "*"
+  push:
+    branches: master
+    tags: "*"
+jobs:
+  test:
+    name: Julia ${{ matrix.version }} - ${{ matrix.os }} - ${{ matrix.arch }} - ${{ github.event_name }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: true
+      matrix:
+        version:
+          - "1.0"  # Oldest supported version
+          - "1"    # Latest release
+          - nightly
+        os:
+          - ubuntu-latest
+          - macOS-latest
+          - windows-latest
+        arch:
+          - x64
+          - x86
+        exclude:
+          # Test 32-bit only on Linux
+          - os: macOS-latest
+            arch: x86
+          - os: windows-latest
+            arch: x86
+    steps:
+      - uses: actions/checkout@v2
+      - uses: julia-actions/setup-julia@v1
+        with:
+          version: ${{ matrix.version }}
+          arch: ${{ matrix.arch }}
+      - uses: julia-actions/cache@v1
+      - uses: julia-actions/julia-buildpkg@v1
+      - uses: julia-actions/julia-runtest@v1
+      - uses: julia-actions/julia-processcoverage@v1
+      - uses: codecov/codecov-action@v2
+        with:
+          files: lcov.info
+      # Package used Coveralls when it used Travis CI but unfortunately I don't have access
+      # to the repo secrets to configure this.
+      # - uses: julia-actions/julia-uploadcoveralls@v1
+      #   env:
+      #     COVERALLS_TOKEN: ${{ secrets.COVERALLS_TOKEN }}
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 9d3f4c2..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,20 +0,0 @@
-# Documentation: http://docs.travis-ci.com/user/languages/julia/
-language: julia
-os:
-  - linux
-  - osx
-julia:
-  - 1.0  # LTS
-  - 1    # Latest release
-  - nightly
-notifications:
-  email: false
-matrix:
-  allow_failures:
-    - julia: nightly
-  fast_finish: true
-after_success:
-  # push coverage results to Coveralls
-  - julia -e 'cd(Pkg.dir("Suppressor")); Pkg.add("Coverage"); using Coverage; Coveralls.submit(Coveralls.process_folder())'
-  # push coverage results to Codecov
-  - julia -e 'cd(Pkg.dir("Suppressor")); Pkg.add("Coverage"); using Coverage; Codecov.submit(Codecov.process_folder())'
diff --git a/appveyor.yml b/appveyor.yml
deleted file mode 100644
index a3f31d1..0000000
--- a/appveyor.yml
+++ /dev/null
@@ -1,41 +0,0 @@
-environment:
-  matrix:
-  - julia_version: 1.0  # LTS
-  - julia_version: 1    # Latest release
-  - julia_version: nightly
-
-platform:
-  - x86 # 32-bit
-  - x64 # 64-bit
-
-matrix:
-  allow_failures:
-  - julia_version: nightly
-
-branches:
-  only:
-    - master
-    - /release-.*/
-
-notifications:
-  - provider: Email
-    on_build_success: false
-    on_build_failure: false
-    on_build_status_changed: false
-
-install:
-  - ps: iex ((new-object net.webclient).DownloadString("https://raw.githubusercontent.com/JuliaCI/Appveyor.jl/version-1/bin/install.ps1"))
-
-build_script:
-  - echo "%JL_BUILD_SCRIPT%"
-  - C:\julia\bin\julia -e "%JL_BUILD_SCRIPT%"
-
-test_script:
-  - echo "%JL_TEST_SCRIPT%"
-  - C:\julia\bin\julia -e "%JL_TEST_SCRIPT%"
-
-# # Uncomment to support code coverage upload. Should only be enabled for packages
-# # which would have coverage gaps without running on Windows
-# on_success:
-#   - echo "%JL_CODECOV_SCRIPT%"
-#   - C:\julia\bin\julia -e "%JL_CODECOV_SCRIPT%"