diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 05ee8c1..45a8094 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -26,7 +26,7 @@ jobs:
       run: docker run -d -p 3000:3000 --name ${{ github.sha }} ${{ github.sha }}
 
     - name: Wait for Rails to start
-      run: docker exec ${{ github.sha }} sh -c 'until nc -z localhost 3000; do sleep 1; done'
+      run: docker exec ${{ github.sha }} /usr/bin/sh -c 'until /usr/bin/nc -z localhost 3000; do sleep 1; done'
 
     - name: Run Rails tests
       run: docker exec ${{ github.sha }} bundle exec rails test
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