diff --git a/tools/docker/Dockerfile.monorepo b/tools/docker/Dockerfile.monorepo
index 7d9bc62343575..69ed9b7527786 100644
--- a/tools/docker/Dockerfile.monorepo
+++ b/tools/docker/Dockerfile.monorepo
@@ -38,6 +38,7 @@ RUN --mount=type=cache,target=/var/lib/apt/lists/,sharing=private \
         docker-compose-plugin \
         jq \
         "php${PHP_VERSION}" \
+        "php${PHP_VERSION}-ast" \
         "php${PHP_VERSION}-cli" \
         "php${PHP_VERSION}-curl" \
         "php${PHP_VERSION}-dom" \