diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9f8bb16..1906ccb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,7 +21,10 @@ jobs:
           coverage: none
       - name: XML files are well-formed
         run: |
-          sudo apt-get install -y -q libxml2-utils > /dev/null
+          command -v xmllint > /dev/null || {
+            sudo apt-get update -q > /dev/null
+            sudo apt-get install -y -q libxml2-utils > /dev/null
+          }
           find . -name '*.xml' -not -path './.git/*' -print0 | xargs -0 xmllint --noout
       - name: Language files
         run: php tests/lint/check-language.php bfstop.xml PLG_SYSTEM_BFSTOP