diff --git a/.github/workflows/build-static.yml b/.github/workflows/build-static.yml
index b98668e38..7676b3dc6 100644
--- a/.github/workflows/build-static.yml
+++ b/.github/workflows/build-static.yml
@@ -152,7 +152,7 @@ jobs:
           - {runs_on: ubuntu-latest, docker_container: "debian:buster", name: "Debian 10 Buster", archive_name: "linux", exe_file: "bin/quick-lint-js"}
           - {runs_on: ubuntu-latest, docker_container: "fedora:35", name: "Fedora 35", archive_name: "linux", exe_file: "bin/quick-lint-js"}
           - {runs_on: ubuntu-latest, docker_container: "fedora:36", name: "Fedora 36", archive_name: "linux", exe_file: "bin/quick-lint-js"}
-          - {runs_on: ubuntu-latest, docker_container: "ubuntu:18.04", name: "Ubuntu 18.04 LTS Bionic", archive_name: "linux", exe_file: "bin/quick-lint-js"}
+          - {runs_on: ubuntu-latest, docker_container: "ubuntu:18.04", name: "Ubuntu 18.04 LTS Bionic", archive_name: "linux", exe_file: "bin/quick-lint-js", install_node_20_ubuntu: true}
           - {runs_on: ubuntu-latest, docker_container: "ubuntu:20.04", name: "Ubuntu 20.04 LTS Focal", archive_name: "linux", exe_file: "bin/quick-lint-js"}
     runs-on: ${{ matrix.os.runs_on }}
     container: ${{ matrix.os.docker_container }}
@@ -171,6 +171,16 @@ jobs:
           uname -a || :
         shell: bash
 
+      # Node.js 20 is required by actions/download-artifact.
+      # TODO(strager): Bake this step into the Docker image.
+      - name: install Node.js 20 on Ubuntu
+        if: ${{ matrix.os.install_node_20_ubuntu }}
+        run: |
+          curl -sL https://deb.nodesource.com/setup_18.x -o nodesource_setup.sh
+          bash nodesource_setup.sh
+          apt-get install nodejs
+        shell: bash
+
       - uses: actions/download-artifact@9bc31d5ccc31df68ecc42ccf4149144866c47d8a # v3.0.2
         with:
           name: quick-lint-js-${{ matrix.os.archive_name }}-${{ github.sha }}
diff --git a/.github/workflows/debian-package.yml b/.github/workflows/debian-package.yml
index ab29bd080..d660af223 100644
--- a/.github/workflows/debian-package.yml
+++ b/.github/workflows/debian-package.yml
@@ -68,8 +68,8 @@ jobs:
           - {arch: amd64, runs_on: ubuntu-latest, docker_container: "debian:buster", name: "Debian 10 Buster"}
           - {arch: amd64, runs_on: ubuntu-latest, docker_container: "pureos/pureos:amber-latest", name: "PureOS Amber"}
           - {arch: amd64, runs_on: ubuntu-latest, docker_container: "ubuntu:16.04", name: "Ubuntu 16.04 LTS Xenial"}
-          - {arch: amd64, runs_on: ubuntu-latest, docker_container: "ubuntu:18.04", name: "Ubuntu 18.04 LTS Bionic"}
-          - {arch: amd64, runs_on: ubuntu-latest, docker_container: "ubuntu:20.04", name: "Ubuntu 20.04 LTS Focal"}
+          - {arch: amd64, runs_on: ubuntu-latest, docker_container: "ubuntu:18.04", name: "Ubuntu 18.04 LTS Bionic", install_node_20_ubuntu: true}
+          - {arch: amd64, runs_on: ubuntu-latest, docker_container: "ubuntu:20.04", name: "Ubuntu 20.04 LTS Focal", install_node_20_ubuntu: true}
           - {arch: arm64, runs_on: stracle-linux-aarch64, docker_container: "debian:bullseye", name: "Debian 11 Bullseye"}
           - {arch: arm64, runs_on: stracle-linux-aarch64, docker_container: "debian:buster", name: "Debian 10 Buster"}
           - {arch: arm64, runs_on: stracle-linux-aarch64, docker_container: "ubuntu:20.04", name: "Ubuntu 20.04 LTS Focal"}
@@ -89,8 +89,19 @@ jobs:
           uname -a || :
 
       - name: update apt
+        if: ${{ not matrix.os.install_node_20_ubuntu }}
         run: apt-get update
 
+      # Node.js 20 is required by actions/download-artifact.
+      # TODO(strager): Bake this step into the Docker image.
+      - name: install Node.js 20 on Ubuntu
+        if: ${{ matrix.os.install_node_20_ubuntu }}
+        run: |
+          curl -sL https://deb.nodesource.com/setup_18.x -o nodesource_setup.sh
+          bash nodesource_setup.sh
+          apt-get install nodejs
+        shell: bash
+
       - uses: actions/download-artifact@9bc31d5ccc31df68ecc42ccf4149144866c47d8a # v3.0.2
         with:
           name: quick-lint-js-deb-${{ matrix.os.arch }}-${{ github.sha }}