diff --git a/.github/workflows/build-userguide-pdf.yml b/.github/workflows/build-userguide-pdf.yml
index 2dbf16e..6122bf7 100644
--- a/.github/workflows/build-userguide-pdf.yml
+++ b/.github/workflows/build-userguide-pdf.yml
@@ -46,7 +46,7 @@ jobs:
         if: ${{ github.ref_name == 'master' }}
         run: |
           # maybe switch to an image with git already included, for now install it here
-          apt install git -y
+          apt update && apt install git -y
           git config --global user.name '${{ env.UG_AUTHOR }}'
           git config --global user.email '${{ github.actor }}@users.noreply.github.com'
           git add manual/moderncv_userguide.pdf