diff --git a/.github/workflows/ci-build.yml b/.github/workflows/ci-build.yml
index a6652b3f7..10d3b20fb 100644
--- a/.github/workflows/ci-build.yml
+++ b/.github/workflows/ci-build.yml
@@ -37,7 +37,8 @@ jobs:
             ldflags: "-m32"
             libflags: "-m32"
             os: ubuntu-20.04
-            install: "g++-multilib"
+            # https://github.com/actions/runner-images/issues/2324#issuecomment-749985726
+            install: "gcc-multilib"
             ninja_release_name: v1.11.1/ninja-linux.zip
 
           - slug: linux-amd64
@@ -64,7 +65,7 @@ jobs:
     steps:
       - name: Install packages
         if: matrix.install
-        run: sudo apt install ${{ matrix.install }}
+        run: sudo apt update && sudo apt install ${{ matrix.install }}
 
       - uses: actions/checkout@v4
         with: