Update packages in Docker image.

pshriwise · pshriwise · commit c032432e4444 · 2021-04-13T09:54:16.000-05:00
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
@@ -25,7 +25,9 @@ jobs:
       -
         name: Apt dependencies
         shell: bash
-        run: apt install -y libgl1-mesa
+        run: |
+          apt update
+          apt install -y libgl1-mesa
       -
         uses: actions/checkout@v2
       -
