diff --git a/.github/workflows/testpr.yml b/.github/workflows/testpr.yml
index 98ab77f68..fcfc4afa4 100644
--- a/.github/workflows/testpr.yml
+++ b/.github/workflows/testpr.yml
@@ -66,6 +66,7 @@ jobs:
       if: matrix.platform == 'linux-aarch64'
       shell: bash -l {0}
       run: |
+        sudo apt-get update
         sudo apt-get install -y libgl1-mesa-dev libglu1-mesa-dev libx11-dev libxi-dev libxmu-dev
 
     - shell: bash -l {0}