diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 9f085d60..c50494cb 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -1,10 +1,9 @@
 name: Test
 
-on: [push]
+on: [push, pull_request]
 
 jobs:
   build:
-
     runs-on: windows-latest
     strategy:
       max-parallel: 3
@@ -12,23 +11,23 @@ jobs:
         python-version: [3.5, 3.6, 3.7]
 
     steps:
-    - uses: actions/checkout@v1
-    - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v1
-      with:
-        python-version: ${{ matrix.python-version }}
-    - name: Set Python PATH
-      run: ci/actions/setup
-    - name: Install Rust
-      uses: actions-rs/toolchain@v1
-      with:
-        toolchain: nightly
-        default: true
-    - name: Build
-      run: cargo build --verbose
-    - name: Install test dependencies
-      run: |
-        python -m pip install -U pip setuptools
-        pip install setuptools-rust pytest pytest-benchmark tox tox-venv
-    - name: Test
-      run: ci/actions/test
+      - uses: actions/checkout@v1
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v1
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Set Python PATH
+        run: ci/actions/setup
+      - name: Install Rust
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: nightly
+          default: true
+      - name: Build
+        run: cargo build --verbose
+      - name: Install test dependencies
+        run: |
+          python -m pip install -U pip setuptools
+          pip install setuptools-rust pytest pytest-benchmark tox tox-venv
+      - name: Test
+        run: ci/actions/test