Clarification to comment #5 : - apt install ghostscript, upgrades only ghostscript and libgs9 but NOT libgs9-common : jo@xenial-build:~$ dpkg -l | grep ghostscript ii ghostscript 9.25~dfsg+1-0ubuntu0.16.04.1 amd64 interpreter for the PostScript language and for PDF jo@xenial-build:~$ dpkg -l | grep libgs9 ii libgs9:amd64 9.25~dfsg+1-0ubuntu0.16.04.1 amd64 interpreter for the PostScript language and for PDF - Library ii libgs9-common 9.25~dfsg+1-0ubuntu0.16.04.1 all interpreter for the PostScript language and for PDF - common files jo@xenial-build:~$ sudo apt install ghostscript Reading package lists... Done Building dependency tree Reading state information... Done The following additional packages will be installed: libgs9 Suggested packages: ghostscript-x hpijs The following packages will be upgraded: ghostscript libgs9 2 upgraded, 0 newly installed, 0 to remove and 1 not upgraded. Need to get 0 B/2,311 kB of archives. After this operation, 2,048 B of additional disk space will be used. Do you want to continue? [Y/n] Y (Reading database ... 35659 files and directories currently installed.) Preparing to unpack .../ghostscript_9.25~dfsg+1-0ubuntu0.16.04.2_amd64.deb ... Unpacking ghostscript (9.25~dfsg+1-0ubuntu0.16.04.2) over (9.25~dfsg+1-0ubuntu0.16.04.1) ... Preparing to unpack .../libgs9_9.25~dfsg+1-0ubuntu0.16.04.2_amd64.deb ... Unpacking libgs9:amd64 (9.25~dfsg+1-0ubuntu0.16.04.2) over (9.25~dfsg+1-0ubuntu0.16.04.1) ... Processing triggers for man-db (2.7.5-1) ... Processing triggers for libc-bin (2.23-0ubuntu10) ... Setting up libgs9:amd64 (9.25~dfsg+1-0ubuntu0.16.04.2) ... Setting up ghostscript (9.25~dfsg+1-0ubuntu0.16.04.2) ... Processing triggers for libc-bin (2.23-0ubuntu10) ... jo@xenial-build:~$ dpkg -l | grep ghostscript ii ghostscript 9.25~dfsg+1-0ubuntu0.16.04.2 amd64 interpreter for the PostScript language and for PDF jo@xenial-build:~$ dpkg -l | grep libgs-9 jo@xenial-build:~$ dpkg -l | grep libgs9 ii libgs9:amd64 9.25~dfsg+1-0ubuntu0.16.04.2 amd64 interpreter for the PostScript language and for PDF - Library ii libgs9-common 9.25~dfsg+1-0ubuntu0.16.04.1 all interpreter for the PostScript language and for PDF - common files -After upgrade ghostscript from -proposed : jo@xenial-build:~$ sudo apt-get install ghostscript/xenial-proposed Reading package lists... Done Building dependency tree Reading state information... Done Selected version '9.25~dfsg+1-0ubuntu0.16.04.3' (Ubuntu:16.04/xenial-proposed [amd64]) for 'ghostscript' Selected version '9.25~dfsg+1-0ubuntu0.16.04.3' (Ubuntu:16.04/xenial-proposed [amd64]) for 'libgs9' because of 'ghostscript' Selected version '9.25~dfsg+1-0ubuntu0.16.04.3' (Ubuntu:16.04/xenial-proposed [all]) for 'libgs9-common' because of 'libgs9' The following additional packages will be installed: libgs9 libgs9-common Suggested packages: ghostscript-x hpijs fonts-droid texlive-lang-cjk The following packages will be upgraded: ghostscript libgs9 libgs9-common 3 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. Need to get 0 B/7,407 kB of archives. After this operation, 10.2 kB of additional disk space will be used. Do you want to continue? [Y/n] Y (Reading database ... 35659 files and directories currently installed.) Preparing to unpack .../libgs9-common_9.25~dfsg+1-0ubuntu0.16.04.3_all.deb ... Unpacking libgs9-common (9.25~dfsg+1-0ubuntu0.16.04.3) over (9.25~dfsg+1-0ubuntu0.16.04.1) ... Preparing to unpack .../ghostscript_9.25~dfsg+1-0ubuntu0.16.04.3_amd64.deb ... Unpacking ghostscript (9.25~dfsg+1-0ubuntu0.16.04.3) over (9.25~dfsg+1-0ubuntu0.16.04.2) ... Preparing to unpack .../libgs9_9.25~dfsg+1-0ubuntu0.16.04.3_amd64.deb ... Unpacking libgs9:amd64 (9.25~dfsg+1-0ubuntu0.16.04.3) over (9.25~dfsg+1-0ubuntu0.16.04.2) ... Processing triggers for man-db (2.7.5-1) ... Processing triggers for libc-bin (2.23-0ubuntu10) ... Setting up libgs9-common (9.25~dfsg+1-0ubuntu0.16.04.3) ... Setting up libgs9:amd64 (9.25~dfsg+1-0ubuntu0.16.04.3) ... Setting up ghostscript (9.25~dfsg+1-0ubuntu0.16.04.3) ... Processing triggers for libc-bin (2.23-0ubuntu10) ... jo@xenial-build:~$ dpkg -l | grep ghostscript ii ghostscript 9.25~dfsg+1-0ubuntu0.16.04.3 amd64 interpreter for the PostScript language and for PDF jo@xenial-build:~$ dpkg -l | grep libgs9 ii libgs9:amd64 9.25~dfsg+1-0ubuntu0.16.04.3 amd64 interpreter for the PostScript language and for PDF - Library ii libgs9-common 9.25~dfsg+1-0ubuntu0.16.04.3 all interpreter for the PostScript language and for PDF - common files