diff --git a/api/Dockerfile.debian b/api/Dockerfile.debian
index b5ee1a1d1..c94703057 100644
--- a/api/Dockerfile.debian
+++ b/api/Dockerfile.debian
@@ -2,6 +2,8 @@ FROM python:3.11-slim AS builder
 
 ARG POETRY_VERSION=1.8
 
+ENV DEBIAN_FRONTEND=noninteractive
+
 ENV VIRTUAL_ENV=/venv
 ENV PATH="/venv/bin:$PATH"
 
@@ -16,17 +18,18 @@ ENV POETRY_CACHE_DIR=/opt/.cache
 
 RUN pip install "poetry==${POETRY_VERSION}"
 
-RUN apt update; \
-    apt install -y \
-      build-essential \
-      python3-dev \
-      libldap-dev \
-      libsasl2-dev \
-      slapd \
-      ldap-utils \
-      tox \
-      lcov \
-      valgrind
+RUN --mount=type=cache,target=/var/lib/apt/lists \
+      apt update; \
+      apt install -y \
+        build-essential \
+        python3-dev \
+        libldap-dev \
+        libsasl2-dev \
+        slapd \
+        ldap-utils \
+        tox \
+        lcov \
+        valgrind
 
 WORKDIR /app
 
@@ -40,18 +43,22 @@ FROM python:3.11-slim AS runtime
 
 ARG POETRY_VERSION=1.8
 
+ENV DEBIAN_FRONTEND=noninteractive
+
 ENV VIRTUAL_ENV=/venv
 ENV PATH="/venv/bin:$PATH"
 
-RUN apt update; apt install -y \
-      ffmpeg \
-      gettext \
-      libjpeg-dev \
-      libldap-2.5-0 \
-      libmagic1 \
-      libpq5 \
-      libxml2 \
-      libxslt1.1
+RUN --mount=type=cache,target=/var/lib/apt/lists \
+      apt update; \
+      apt install -y \
+        ffmpeg \
+        gettext \
+        libjpeg-dev \
+        libldap-2.5-0 \
+        libmagic1 \
+        libpq5 \
+        libxml2 \
+        libxslt1.1
 RUN pip install "poetry==${POETRY_VERSION}"
 
 COPY --from=builder ${VIRTUAL_ENV} ${VIRTUAL_ENV}