diff --git a/service/biboumi/Containerfile b/service/biboumi/Containerfile
index d2285c4..67ed2e9 100644
--- a/service/biboumi/Containerfile
+++ b/service/biboumi/Containerfile
@@ -11,8 +11,8 @@ RUN git clone --branch ${VERSION} https://github.com/louiz/biboumi.git /src && \
     make && make install DESTDIR=/build
 
 FROM docker.io/debian:bookworm-slim@sha256:f80c45482c8d147da87613cb6878a7238b8642bcc24fc11bad78c7bec726f340
-RUN apt-get update -y && apt-get upgrade -y && \
-    apt-get install -y --no-install-recommends ca-certificates gettext gosu
+RUN apt-get update -y && apt-get upgrade -y && apt-get install -y --no-install-recommends \
+    ca-certificates gettext gosu
 
 RUN apt-get update -y && apt-get install -y --no-install-recommends \
     libexpat1 libidn12 libuuid1 libsqlite3-0 libudns0 libbotan-2-19
diff --git a/service/coturn/Containerfile b/service/coturn/Containerfile
index 68fe5cd..45fb6a8 100644
--- a/service/coturn/Containerfile
+++ b/service/coturn/Containerfile
@@ -8,8 +8,8 @@ RUN git clone --branch ${VERSION} --depth=1 https://github.com/coturn/coturn.git
     make && make install DESTDIR=/build
 
 FROM docker.io/debian:bookworm-slim@sha256:f80c45482c8d147da87613cb6878a7238b8642bcc24fc11bad78c7bec726f340
-RUN apt-get update -y && apt-get upgrade -y && \
-    apt-get install -y --no-install-recommends ca-certificates gettext gosu
+RUN apt-get update -y && apt-get upgrade -y && apt-get install -y --no-install-recommends \
+    ca-certificates gettext gosu
 
 RUN apt-get update -y && apt-get install -y --no-install-recommends \
     libevent-2.1 libevent-core-2.1 libevent-extra-2.1 libevent-openssl-2.1 libevent-pthreads-2.1 \
diff --git a/service/dovecot/Containerfile b/service/dovecot/Containerfile
index 048ff27..1419ad7 100644
--- a/service/dovecot/Containerfile
+++ b/service/dovecot/Containerfile
@@ -1,6 +1,6 @@
 FROM docker.io/debian:bookworm-slim@sha256:f80c45482c8d147da87613cb6878a7238b8642bcc24fc11bad78c7bec726f340
-RUN apt-get update -y && apt-get upgrade -y && \
-    apt-get install -y --no-install-recommends ca-certificates gettext gosu
+RUN apt-get update -y && apt-get upgrade -y && apt-get install -y --no-install-recommends \
+    ca-certificates gettext gosu
 
 RUN apt-get update -y && apt-get install -y --no-install-recommends \
     curl netcat-traditional
diff --git a/service/gotosocial/Containerfile b/service/gotosocial/Containerfile
index ac7979e..a0a0a3f 100644
--- a/service/gotosocial/Containerfile
+++ b/service/gotosocial/Containerfile
@@ -8,8 +8,8 @@ RUN tar --no-same-owner -xvzf /src.tar.gz && \
     mkdir -p /build/usr/share/gotosocial && cp -R /src/web /build/usr/share/gotosocial/web
 
 FROM docker.io/debian:bookworm-slim@sha256:f80c45482c8d147da87613cb6878a7238b8642bcc24fc11bad78c7bec726f340
-RUN apt-get update -y && apt-get upgrade -y && \
-    apt-get install -y --no-install-recommends ca-certificates gettext gosu
+RUN apt-get update -y && apt-get upgrade -y && apt-get install -y --no-install-recommends \
+    ca-certificates gettext gosu
 
 RUN apt-get update -y && apt-get install -y --no-install-recommends curl
 RUN adduser --system --group --uid 10000 --home /var/lib/gotosocial gotosocial