diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a5fa0fd..fba5507 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -24,11 +24,6 @@ jobs:
             arch: x86
           - os: ubuntu-latest # covered in "tests" job
             arch: x64
-        include:
-          - os: ubuntu-latest
-            arch: x64
-            prefix: xvfb-run -a -s '-screen 0 1024x768x24'
-            preload: /usr/lib/x86_64-linux-gnu/libstdc++.so.6
     steps:
       - uses: actions/checkout@v2
       - uses: julia-actions/setup-julia@v1
@@ -37,10 +32,6 @@ jobs:
           arch: ${{ matrix.arch }}
       - uses: julia-actions/julia-buildpkg@v1
       - uses: julia-actions/julia-runtest@v1
-        with:
-          prefix: ${{ matrix.prefix }}
-        env:
-          LD_PRELOAD:  ${{ matrix.preload }}
       - uses: julia-actions/julia-uploadcodecov@v0.1
         env:
           CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}