diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 46392284..2ca5083c 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -31,7 +31,7 @@ jobs:
       -
         name: Build HTML
         run: |
-          apt update && apt install xsltproc
+          sudo apt install xsltproc
           xsltproc --output index.html xs3p/xs3p.xsl BuildingSync.xsd
           stat index.html
       -