diff --git a/.github/workflows/ci.py b/.github/workflows/ci.py
index 8b7f95f43..785691ca9 100644
--- a/.github/workflows/ci.py
+++ b/.github/workflows/ci.py
@@ -34,7 +34,7 @@ def install_deps():
         run('brew', 'install', *items)
     else:
         run('sudo apt-get update')
-        run('sudo apt-get install -y libgl1-mesa-dev libxi-dev libxrandr-dev libxinerama-dev'
+        run('sudo apt-get install -y libgl1-mesa-dev libxi-dev libxrandr-dev libxinerama-dev ca-certificates'
             ' libxcursor-dev libxcb-xkb-dev libdbus-1-dev libxkbcommon-dev libharfbuzz-dev libx11-xcb-dev'
             ' libpng-dev liblcms2-dev libfontconfig-dev libxkbcommon-x11-dev libcanberra-dev uuid-dev')
     if is_bundle: