diff --git a/.github/workflows/pr_build.yml b/.github/workflows/pr_build.yml
index 71ff70a3c4..27a333aedc 100644
--- a/.github/workflows/pr_build.yml
+++ b/.github/workflows/pr_build.yml
@@ -104,6 +104,8 @@ jobs:
       with: 
         submodules: true
         fetch-depth: 1
+    - name: Update apt repository index
+      run: sudo apt update
     - name: Install apt packages
       run: sudo apt install -y mesa-common-dev libegl1 libglvnd-dev libdouble-conversion1 libpulse0
     - name: Install python modules