diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5a1fac4..58cfffa 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,5 +1,8 @@
 name: ci
-on: [push, pull_request]
+on:
+  push:
+  pull_request:
+  workflow_dispatch:
 jobs:
   test:
     runs-on: ${{ matrix.os }}
@@ -10,7 +13,8 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
-        with: { python-version: ${{ matrix.py }} }
+        with:
+          python-version: ${{ matrix.py }}
       - run: python -m pip install --upgrade pip
       - run: pip install -r requirements.txt
       - run: python -c "import numpy, pandas, scipy, statsmodels; print('OK')"