diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 3e3e7ba..c9f6f2c 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,6 +1,6 @@
 name: build
 
-on: [push]
+on: [push, workflow_dispatch]
 
 jobs:
   build:
@@ -15,15 +15,11 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install pytest pytest-cov coveralls
+          pip install pytest
       - name: Install
         run: |
           pip install -e .
       - name: Test with pytest
         run: |
-          python -m pytest --cov python_codon_tables --cov-report term-missing
-      - name: Coveralls
-        run: coveralls
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          COVERALLS_SERVICE_NAME: github
+          cd python_codon_tables
+          python -m pytest