diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 24772da..083f76b 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -15,6 +15,7 @@ jobs:
         uses: actions/checkout@v3
       - name: Install TeX Live
         run: |
+          sudo apt update
           sudo apt install -y texlive texlive-full
       - name: Build
         run: |