diff --git a/.github/docker/Dockerfile b/.github/docker/Dockerfile
index c9da228..aef0316 100644
--- a/.github/docker/Dockerfile
+++ b/.github/docker/Dockerfile
@@ -1,3 +1,5 @@
 FROM ghcr.io/loongarchlinux/archlinux:latest
 ARG TARGETARCH
-RUN pacman --noconfirm -Syu
+RUN --mount=type=cache,target=/var/cache/pacmant,sharing=locked \
+    --mount=type=cache,target=/var/lib/pacman/sync,sharing=locked \
+    pacman --noconfirm -Syu
diff --git a/.github/workflows/docker-images.yml b/.github/workflows/docker-images.yml
index 3933588..c82b789 100644
--- a/.github/workflows/docker-images.yml
+++ b/.github/workflows/docker-images.yml
@@ -7,11 +7,13 @@ on:
     - cron: "0 0 * * FRI"
   pull_request:
     paths:
+      - ".github/docker/Dockerfile"
       - ".github/workflows/docker-images.yml"
   push:
     branches:
       - main
     paths:
+      - ".github/docker/Dockerfile"
       - ".github/workflows/docker-images.yml"
 
 jobs: