diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index ecbd7eea6a..cc46a492c5 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -45,6 +45,7 @@ jobs:
       - uses: actions/checkout@v2
         with:
           submodules: 'recursive'
+      - run: sudo apt-get update -qq
       - run: sudo apt-get install -qq g++-8 cmake build-essential python3-pip python3-virtualenv nodejs tar gzip libpthread-stubs0-dev libc6-dbg gdb
       - run: sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-8 90
       - run: make install-test-dependencies