diff --git a/.github/scripts/build_env/ubuntu.sh b/.github/scripts/build_env/ubuntu.sh
index 3a027f0..62f860e 100755
--- a/.github/scripts/build_env/ubuntu.sh
+++ b/.github/scripts/build_env/ubuntu.sh
@@ -7,4 +7,11 @@ SCRIPT_DIR=$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" &>/dev/null && pwd)
 curl -sSL "https://github.com/rustwasm/wasm-bindgen/releases/download/0.2.87/wasm-bindgen-0.2.87-x86_64-unknown-linux-musl.tar.gz" |
   sudo tar -xzvf - -C /usr/local/bin --strip-components=1
 
+# Install chromedriver.
+npx @puppeteer/browsers install chromedriver@stable
+
+# Set CHROMEDRIVER env var.
+CHROMEDRIVERS=(chromedriver/*/chromedriver-*/chromedriver)
+printf "CHROMEDRIVER=%s\n" "${CHROMEDRIVERS[0]}" >>"$GITHUB_ENV"
+
 source "${SCRIPT_DIR}/common.sh"