diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index fff861f..b5e9887 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -29,6 +29,7 @@ jobs:
           - nightly
     steps:
       - uses: actions/checkout@v3
+      - run: sudo apt-get update
       - run: sudo apt-get install binutils-dev libunwind-dev gnuplot
       - run: rustup update ${{ matrix.toolchain }} && rustup default ${{ matrix.toolchain }}
       - run: cargo install cargo-afl honggfuzz grcov