diff --git a/.github/workflows/ccpp.yml b/.github/workflows/ccpp.yml
index aa7d50be46..46a81c62c0 100644
--- a/.github/workflows/ccpp.yml
+++ b/.github/workflows/ccpp.yml
@@ -14,4 +14,4 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: Run tests
-      run: apt-get install libpng-dev; cd tests; python ./build.py
+      run: sudo apt-get install libpng-dev; cd tests; python ./build.py