diff --git a/.dockleignore b/.dockleignore
index 7b17e9c9b5a1..2f9326645641 100644
--- a/.dockleignore
+++ b/.dockleignore
@@ -1,2 +1,3 @@
+DKL-DI-0005
 DKL-DI-0006
 DKL-LI-0003
diff --git a/Dockerfile b/Dockerfile
index 9b6f2f7e30ca..89a8d38f8c1c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -45,7 +45,6 @@ RUN --mount=type=cache,target=/var/cache/apt,sharing=locked \
 	&& apt-get update \
 	&& apt-get install -y --no-install-recommends \
 	ffmpeg tini \
-	&& rm -rf /var/lib/apt/lists \
 	&& corepack enable \
 	&& groupadd -g "${GID}" misskey \
 	&& useradd -l -u "${UID}" -g "${GID}" -m -d /misskey misskey \