diff --git a/9/community/Dockerfile b/9/community/Dockerfile
index 44fe3290..f5afa936 100644
--- a/9/community/Dockerfile
+++ b/9/community/Dockerfile
@@ -23,7 +23,12 @@ RUN set -eux; \
     groupadd --system --gid 1000 sonarqube; \
     useradd --system --uid 1000 --gid sonarqube sonarqube; \
     apt-get update; \
-    apt-get --no-install-recommends -y install gnupg unzip curl bash fonts-dejavu; \
+    apt-get --no-install-recommends -y install \
+        bash \
+        curl \
+        fonts-dejavu \
+        gnupg \
+        unzip; \
     echo "networkaddress.cache.ttl=5" >> "${JAVA_HOME}/conf/security/java.security"; \
     sed --in-place --expression="s?securerandom.source=file:/dev/random?securerandom.source=file:/dev/urandom?g" "${JAVA_HOME}/conf/security/java.security"; \
     # pub   2048R/D26468DE 2015-05-25
diff --git a/9/datacenter/app/Dockerfile b/9/datacenter/app/Dockerfile
index 34913f50..0f1b50a5 100644
--- a/9/datacenter/app/Dockerfile
+++ b/9/datacenter/app/Dockerfile
@@ -25,7 +25,13 @@ RUN set -eux; \
     groupadd --system --gid 1000 sonarqube; \
     useradd --system --uid 1000 --gid sonarqube sonarqube; \
     apt-get update; \
-    apt-get --no-install-recommends -y install gnupg unzip curl bash fonts-dejavu iproute2; \
+    apt-get --no-install-recommends -y install \
+        bash \
+        curl \
+        fonts-dejavu \
+        gnupg \
+        iproute2 \
+        unzip; \
     echo "networkaddress.cache.ttl=5" >> "${JAVA_HOME}/conf/security/java.security"; \
     sed --in-place --expression="s?securerandom.source=file:/dev/random?securerandom.source=file:/dev/urandom?g" "${JAVA_HOME}/conf/security/java.security"; \
     # pub   2048R/D26468DE 2015-05-25
diff --git a/9/datacenter/search/Dockerfile b/9/datacenter/search/Dockerfile
index 37cc7741..14b7865f 100644
--- a/9/datacenter/search/Dockerfile
+++ b/9/datacenter/search/Dockerfile
@@ -25,7 +25,13 @@ RUN set -eux; \
     groupadd --system --gid 1000 sonarqube; \
     useradd --system --uid 1000 --gid sonarqube sonarqube; \
     apt-get update; \
-    apt-get --no-install-recommends -y install gnupg unzip curl bash fonts-dejavu iproute2; \
+    apt-get --no-install-recommends -y install \
+        bash \
+        curl \
+        fonts-dejavu \
+        gnupg \
+        iproute2 \
+        unzip; \
     echo "networkaddress.cache.ttl=5" >> "${JAVA_HOME}/conf/security/java.security"; \
     sed --in-place --expression="s?securerandom.source=file:/dev/random?securerandom.source=file:/dev/urandom?g" "${JAVA_HOME}/conf/security/java.security"; \
     # pub   2048R/D26468DE 2015-05-25
diff --git a/9/developer/Dockerfile b/9/developer/Dockerfile
index 221a9d37..6926ca2a 100644
--- a/9/developer/Dockerfile
+++ b/9/developer/Dockerfile
@@ -23,7 +23,12 @@ RUN set -eux; \
     groupadd --system --gid 1000 sonarqube; \
     useradd --system --uid 1000 --gid sonarqube sonarqube; \
     apt-get update; \
-    apt-get --no-install-recommends -y install gnupg unzip curl bash fonts-dejavu; \
+    apt-get --no-install-recommends -y install \
+        bash \
+        curl \
+        fonts-dejavu \
+        gnupg \
+        unzip; \
     echo "networkaddress.cache.ttl=5" >> "${JAVA_HOME}/conf/security/java.security"; \
     sed --in-place --expression="s?securerandom.source=file:/dev/random?securerandom.source=file:/dev/urandom?g" "${JAVA_HOME}/conf/security/java.security"; \
     # pub   2048R/D26468DE 2015-05-25
diff --git a/9/enterprise/Dockerfile b/9/enterprise/Dockerfile
index 541df19a..7e27cf77 100644
--- a/9/enterprise/Dockerfile
+++ b/9/enterprise/Dockerfile
@@ -23,7 +23,12 @@ RUN set -eux; \
     groupadd --system --gid 1000 sonarqube; \
     useradd --system --uid 1000 --gid sonarqube sonarqube; \
     apt-get update; \
-    apt-get --no-install-recommends -y install gnupg unzip curl bash fonts-dejavu; \
+    apt-get --no-install-recommends -y install \
+        bash \
+        curl \
+        fonts-dejavu \
+        gnupg \
+        unzip; \
     echo "networkaddress.cache.ttl=5" >> "${JAVA_HOME}/conf/security/java.security"; \
     sed --in-place --expression="s?securerandom.source=file:/dev/random?securerandom.source=file:/dev/urandom?g" "${JAVA_HOME}/conf/security/java.security"; \
     # pub   2048R/D26468DE 2015-05-25