diff --git a/.examples/dockerfiles/full/apache/Dockerfile b/.examples/dockerfiles/full/apache/Dockerfile
index bd75916..eff7c40 100644
--- a/.examples/dockerfiles/full/apache/Dockerfile
+++ b/.examples/dockerfiles/full/apache/Dockerfile
@@ -6,6 +6,7 @@ RUN set -ex; \
     apt-get install -y --no-install-recommends \
         ffmpeg \
         libmagickcore-6.q16-3-extra \
+        procps \
         smbclient \
         supervisor \
 #       libreoffice \
diff --git a/.examples/dockerfiles/full/fpm-alpine/Dockerfile b/.examples/dockerfiles/full/fpm-alpine/Dockerfile
index bbc8b98..2603d80 100644
--- a/.examples/dockerfiles/full/fpm-alpine/Dockerfile
+++ b/.examples/dockerfiles/full/fpm-alpine/Dockerfile
@@ -5,6 +5,7 @@ RUN set -ex; \
     apk add --no-cache \
         ffmpeg \
         imagemagick \
+        procps \
         samba-client \
         supervisor \
 #       libreoffice \
diff --git a/.examples/dockerfiles/full/fpm/Dockerfile b/.examples/dockerfiles/full/fpm/Dockerfile
index 0fa2ccb..abc0717 100644
--- a/.examples/dockerfiles/full/fpm/Dockerfile
+++ b/.examples/dockerfiles/full/fpm/Dockerfile
@@ -6,6 +6,7 @@ RUN set -ex; \
     apt-get install -y --no-install-recommends \
         ffmpeg \
         libmagickcore-6.q16-3-extra \
+        procps \
         smbclient \
         supervisor \
 #       libreoffice \
diff --git a/.examples/dockerfiles/smb/apache/Dockerfile b/.examples/dockerfiles/smb/apache/Dockerfile
index 8ea3f77..a884ffb 100644
--- a/.examples/dockerfiles/smb/apache/Dockerfile
+++ b/.examples/dockerfiles/smb/apache/Dockerfile
@@ -1,3 +1,3 @@
 FROM nextcloud:apache
 
-RUN apt-get update && apt-get install -y smbclient && rm -rf /var/lib/apt/lists/*
+RUN apt-get update && apt-get install -y procps smbclient && rm -rf /var/lib/apt/lists/*
diff --git a/.examples/dockerfiles/smb/fpm-alpine/Dockerfile b/.examples/dockerfiles/smb/fpm-alpine/Dockerfile
index a66cd93..0577777 100644
--- a/.examples/dockerfiles/smb/fpm-alpine/Dockerfile
+++ b/.examples/dockerfiles/smb/fpm-alpine/Dockerfile
@@ -1,3 +1,3 @@
 FROM nextcloud:fpm-alpine
 
-RUN apk add --no-cache samba-client
+RUN apk add --no-cache procps samba-client
diff --git a/.examples/dockerfiles/smb/fpm/Dockerfile b/.examples/dockerfiles/smb/fpm/Dockerfile
index 4c99b86..417565f 100644
--- a/.examples/dockerfiles/smb/fpm/Dockerfile
+++ b/.examples/dockerfiles/smb/fpm/Dockerfile
@@ -1,3 +1,3 @@
 FROM nextcloud:fpm
 
-RUN apt-get update && apt-get install -y smbclient && rm -rf /var/lib/apt/lists/*
+RUN apt-get update && apt-get install -y procps smbclient && rm -rf /var/lib/apt/lists/*