diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 21d4274a..9dcfe339 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -22,6 +22,7 @@ jobs:
             setup.py
       - name: Install dependencies
         run: |
+          sudo apt-get update
           sudo apt-get install texlive-latex-extra texlive-pictures texlive-science texlive-fonts-recommended lmodern ghostscript
           python -m pip install --upgrade pip
           pip install -r dev_requirements.txt --upgrade