diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
new file mode 100644
index 000000000..69010e3df
--- /dev/null
+++ b/.github/workflows/deploy.yml
@@ -0,0 +1,17 @@
+name: deploy
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  deploy:
+    runs-on: ubuntu-20.04
+    steps:
+      - run: cargo install mdbook --version 0.4.6
+      - run: cd mdbook && mdbook build
+      - uses: JamesIves/github-pages-deploy-action@4.0.0
+        with:
+          branch: gh-pages
+          folder: mdbook
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
deleted file mode 100644
index 3c13d1be2..000000000
--- a/.github/workflows/rust.yml
+++ /dev/null
@@ -1,22 +0,0 @@
-name: Rust
-
-on:
-  push:
-    branches: [ master ]
-  pull_request:
-    branches: [ master ]
-
-env:
-  CARGO_TERM_COLOR: always
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v2
-    - name: Build
-      run: cargo build --verbose
-    - name: Run tests
-      run: cargo test --verbose
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 000000000..4d4c3aee0
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,18 @@
+name: test
+
+on: [push, pull_request]
+
+jobs:
+  test:
+    runs-on: ubuntu-20.04
+    steps:
+    - uses: actions/checkout@v2
+    - run: rustup update 1.50.0 --no-self-update && rustup default 1.50.0
+    - run: cargo build
+    - name: test mdBook
+      # rustdoc doesn't build dependencies, so it needs to run after `cargo build`,
+      # but its dependency search gets confused if there are multiple copies of any
+      # dependency in target/debug/deps, so it needs to run before `cargo test` et al.
+      # clutter target/debug/deps with multiple copies of things.
+      run: for file in $(find mdbook -name '*.md'); do rustdoc --test $file  -L ./target/debug/deps; done
+    - run: cargo test
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 8ed49f737..000000000
--- a/.travis.yml
+++ /dev/null
@@ -1,26 +0,0 @@
-dist: xenial
-language: rust
-rust:
-- stable
-install:
-- pip install --user ghp-import
-script:
-- cargo build
-# rustdoc doesn't build dependencies, so it needs to run after `cargo build`,
-# but its dependency search gets confused if there are multiple copies of any
-# dependency in target/debug/deps, so it needs to run before `cargo test` et al.
-# clutter target/debug/deps with multiple copies of things.
-- for file in $(find mdbook -name '*.md'); do rustdoc --test $file  -L ./target/debug/deps; done
-- cargo test
-- cargo bench
-- cargo doc
-after_success: |
-  [ $TRAVIS_BRANCH = master ] &&
-  [ $TRAVIS_PULL_REQUEST = false ] &&
-  cargo install mdbook &&
-  (cd mdbook; mdbook build) &&
-  ghp-import -n mdbook/book &&
-  git push -fq https://${GH_TOKEN}@github.com/${TRAVIS_REPO_SLUG}.git gh-pages
-env:
-  global:
-  - secure: CzDrbiXWbvgjqZn1z5aFcttW90tWT4LpEc9bSJ/Wb0i4QvABAaOefw3Griu9MT9vNvbyM1ysk8fzXMHXF1ivhUZFzV4MRr+nrKg4LTg/upDAVAEOjWdrFUJOp17a+PVS3K83zrVxeZMkmQe4ACB3a9hsHilKp635xgizSJWQ6Wo=