diff --git a/.github/workflows/build_main_documentation.yml b/.github/workflows/build_main_documentation.yml
index f25ee611f6..e2a90843aa 100644
--- a/.github/workflows/build_main_documentation.yml
+++ b/.github/workflows/build_main_documentation.yml
@@ -57,7 +57,6 @@ jobs:
       - name: Free disk space
         run: |
           df -h
-          sudo apt-get update
           sudo apt-get purge -y '^apache.*'
           sudo apt-get purge -y '^imagemagick.*'
           sudo apt-get purge -y '^dotnet.*'