diff --git a/.circleci/config.yml b/.circleci/config.yml
deleted file mode 100644
index 6d245e8..0000000
--- a/.circleci/config.yml
+++ /dev/null
@@ -1,118 +0,0 @@
-version: 2.1
-
-executors:
-  default:
-    description: Executor environment for building Rust crates.
-    docker:
-      - image: circleci/rust:1
-
-commands:
-  update_toolchain:
-    description: Update the Rust toolchain to use for building.
-    parameters:
-      toolchain:
-        description: Rust toolchain to use. Overrides the default toolchain (stable) or any toolchain specified in the project via `rust-toolchain`.
-        type: string
-        default: ""
-    steps:
-      - run:
-          name: Update toolchain
-          command: |
-            test -z "<<parameters.toolchain>>" || echo "<<parameters.toolchain>>" >rust-toolchain
-            rustup show active-toolchain
-      - run:
-          name: Version information
-          command: |
-            rustup --version
-            rustc --version
-            cargo --version
-
-  build:
-    description: Build all targets of a Rust crate.
-    steps:
-      - run:
-          name: Calculate dependencies
-          command: |
-            rustc --version >rust-version
-            test -e Cargo.lock || cargo generate-lockfile
-      - restore_cache:
-          keys:
-            - v6-cargo-cache-{{arch}}-{{checksum "rust-version"}}-{{checksum "Cargo.lock"}}
-      - run:
-          name: Build all targets
-          command: cargo build --tests --all-features
-      - save_cache:
-          paths:
-            - /usr/local/cargo/registry
-            - target
-          key: v6-cargo-cache-{{arch}}-{{checksum "rust-version"}}-{{checksum "Cargo.lock"}}
-
-  check:
-    description: Check all targets of a Rust crate.
-    steps:
-      - run:
-          name: Calculate dependencies
-          command: test -e Cargo.lock || cargo generate-lockfile
-      - run:
-          name: Check all targets
-          command: |
-            if rustup component add clippy; then
-              cargo clippy --all --all-targets --all-features -- -Dwarnings
-            else
-              echo Skipping clippy
-            fi
-
-  test:
-    description: Run all tests of a Rust crate. Make sure to build first.
-    parameters:
-      release:
-        description: By default, the crate is build in debug mode without optimizations. Set this to true to compile in release mode.
-        type: boolean
-        default: false
-    steps:
-      - run:
-          name: Run all tests
-          command: cargo test --all-features
-
-jobs:
-  check:
-    description: Check a Rust crate.
-    parameters:
-      toolchain:
-        description: Rust toolchain to use. Overrides the default toolchain (stable) or any toolchain specified in the project via `rust-toolchain`.
-        type: string
-        default: ""
-    executor: default
-    steps:
-      - checkout
-      - update_toolchain:
-          toolchain: <<parameters.toolchain>>
-      - check
-
-  test:
-    description: Builds a Rust crate and runs all tests.
-    parameters:
-      toolchain:
-        description: Rust toolchain to use. Overrides the default toolchain (stable) or any toolchain specified in the project via `rust-toolchain`.
-        type: string
-        default: ""
-    executor: default
-    steps:
-      - checkout
-      - update_toolchain:
-          toolchain: <<parameters.toolchain>>
-      - build
-      - test
-
-workflows:
-  Project:
-    jobs:
-      - test:
-          name: cargo test (stable)
-          toolchain: stable
-      - test:
-          name: cargo test (beta)
-          toolchain: beta
-      - test:
-          name: cargo test (nightly)
-          toolchain: nightly
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..cbfe79f
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,33 @@
+name: Continuous Integration
+on:
+  push:
+  pull_request:
+  schedule:
+    - cron: "0 0 1,15 * *"
+
+jobs:
+  test:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macOS-latest]
+        rust: [stable, beta, nightly]
+
+    steps:
+      - uses: hecrj/setup-rust-action@v1
+        with:
+          rust-version: ${{ matrix.rust }}
+      - uses: actions/checkout@v1
+      - name: Run tests
+        run: cargo test --all-features
+
+  clippy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: hecrj/setup-rust-action@v1
+        with:
+          rust-version: stable
+          components: clippy
+      - uses: actions/checkout@v1
+      - name: Clippy
+        run: cargo clippy -- -D warnings