diff --git a/README.md b/README.md
index 02f7ff40d6d8843864619d94d850751e4a4a9504..0df30138245fd2e64920d68c781e6b504e313986 100644
--- a/README.md
+++ b/README.md
@@ -72,6 +72,12 @@ Special acknowledgement to:<br />
 
 Use the gitlab tag of the docker image (e.g., gitlab_v5.0) to get the description of the modifications below
 
+### 10.5
+
+Dockerfiles modified: <br />
+ubuntu_v22.4_bcftools_v1.18 at date 20231201: from gmillot/ubuntu_v22.4_bcftools_v1.18:gitlab_v10.4 with pigz added<br />
+
+
 ### 10.4
 
 Dockerfiles modified: <br />
diff --git a/ubuntu/v22.04/bcftools/v1.18/Dockerfile b/ubuntu/v22.04/bcftools/v1.18/Dockerfile
index 08b65e94760fa33db38e4b7e907988b7ba040524..7dc6c68e15e018c8ffd3ed2e07b531f0f05e96a2 100644
--- a/ubuntu/v22.04/bcftools/v1.18/Dockerfile
+++ b/ubuntu/v22.04/bcftools/v1.18/Dockerfile
@@ -46,6 +46,7 @@ RUN echo "\n\n\n\n================\n\napt-get update\n\n================\n\n\n\n
     # samtools install
     && echo "\n\n\n\n================\n\napt-get install\n\n================\n\n\n\n" >> /building.log \
     && apt-get install -y \
+    pigz \
     gzip \
     tabix \
     wget \
@@ -96,6 +97,7 @@ RUN echo "\n\n\n\n================\n\napt-get update\n\n================\n\n\n\n
     | tee -a /building.log \
     && echo "\n\n\n\n================\n\ninstalled packages\n\n================\n\n\n\n" >> /building.log \
     && apt-cache policy \
+    pigz \
     gzip \
     tabix \
     wget \
diff --git a/ubuntu/v22.04/bcftools/v1.18/building.log b/ubuntu/v22.04/bcftools/v1.18/building.log
index ecff3008770ac37460a2d3ae908a14efac99beeb..0771ab2e6cc6e436a0bfad4bca75c8bbe768a667 100644
--- a/ubuntu/v22.04/bcftools/v1.18/building.log
+++ b/ubuntu/v22.04/bcftools/v1.18/building.log
@@ -11,25 +11,25 @@ apt-get update
 
 
 
-Get:1 http://security.ubuntu.com/ubuntu jammy-security InRelease [110 kB]
-Get:2 http://archive.ubuntu.com/ubuntu jammy InRelease [270 kB]
-Get:3 http://security.ubuntu.com/ubuntu jammy-security/multiverse amd64 Packages [44.0 kB]
-Get:4 http://archive.ubuntu.com/ubuntu jammy-updates InRelease [119 kB]
-Get:5 http://security.ubuntu.com/ubuntu jammy-security/universe amd64 Packages [1,027 kB]
-Get:6 http://archive.ubuntu.com/ubuntu jammy-backports InRelease [109 kB]
-Get:7 http://security.ubuntu.com/ubuntu jammy-security/main amd64 Packages [1,265 kB]
-Get:8 http://archive.ubuntu.com/ubuntu jammy/multiverse amd64 Packages [266 kB]
+Get:1 http://archive.ubuntu.com/ubuntu jammy InRelease [270 kB]
+Get:2 http://security.ubuntu.com/ubuntu jammy-security InRelease [110 kB]
+Get:3 http://archive.ubuntu.com/ubuntu jammy-updates InRelease [119 kB]
+Get:4 http://security.ubuntu.com/ubuntu jammy-security/multiverse amd64 Packages [44.0 kB]
+Get:5 http://archive.ubuntu.com/ubuntu jammy-backports InRelease [109 kB]
+Get:6 http://security.ubuntu.com/ubuntu jammy-security/main amd64 Packages [1,265 kB]
+Get:7 http://archive.ubuntu.com/ubuntu jammy/multiverse amd64 Packages [266 kB]
+Get:8 http://archive.ubuntu.com/ubuntu jammy/main amd64 Packages [1,792 kB]
 Get:9 http://security.ubuntu.com/ubuntu jammy-security/restricted amd64 Packages [1,494 kB]
-Get:10 http://archive.ubuntu.com/ubuntu jammy/universe amd64 Packages [17.5 MB]
-Get:11 http://archive.ubuntu.com/ubuntu jammy/restricted amd64 Packages [164 kB]
-Get:12 http://archive.ubuntu.com/ubuntu jammy/main amd64 Packages [1,792 kB]
-Get:13 http://archive.ubuntu.com/ubuntu jammy-updates/universe amd64 Packages [1,294 kB]
-Get:14 http://archive.ubuntu.com/ubuntu jammy-updates/restricted amd64 Packages [1,520 kB]
-Get:15 http://archive.ubuntu.com/ubuntu jammy-updates/multiverse amd64 Packages [49.8 kB]
-Get:16 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 Packages [1,535 kB]
-Get:17 http://archive.ubuntu.com/ubuntu jammy-backports/universe amd64 Packages [32.6 kB]
-Get:18 http://archive.ubuntu.com/ubuntu jammy-backports/main amd64 Packages [78.3 kB]
-Fetched 28.6 MB in 15s (1,946 kB/s)
+Get:10 http://archive.ubuntu.com/ubuntu jammy/restricted amd64 Packages [164 kB]
+Get:11 http://archive.ubuntu.com/ubuntu jammy/universe amd64 Packages [17.5 MB]
+Get:12 http://security.ubuntu.com/ubuntu jammy-security/universe amd64 Packages [1,027 kB]
+Get:13 http://archive.ubuntu.com/ubuntu jammy-updates/restricted amd64 Packages [1,520 kB]
+Get:14 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 Packages [1,535 kB]
+Get:15 http://archive.ubuntu.com/ubuntu jammy-updates/universe amd64 Packages [1,294 kB]
+Get:16 http://archive.ubuntu.com/ubuntu jammy-updates/multiverse amd64 Packages [49.8 kB]
+Get:17 http://archive.ubuntu.com/ubuntu jammy-backports/main amd64 Packages [78.3 kB]
+Get:18 http://archive.ubuntu.com/ubuntu jammy-backports/universe amd64 Packages [32.6 kB]
+Fetched 28.6 MB in 2s (15.9 MB/s)
 Reading package lists...
 
 
@@ -66,30 +66,34 @@ Suggested packages:
 The following NEW packages will be installed:
   bzip2-doc libbz2-dev libcurl4 libcurl4-openssl-dev libgetopt-complete-perl
   libgpm2 libhtscodecs2 liblzma-dev libncurses-dev libncurses5 libncurses5-dev
-  libssl-dev libtinfo5 tabix zlib1g-dev
+  libssl-dev libtinfo5 pigz tabix zlib1g-dev
 The following packages will be upgraded:
   libssl3
-1 upgraded, 15 newly installed, 0 to remove and 18 not upgraded.
-Need to get 6,861 kB of archives.
-After this operation, 21.6 MB of additional disk space will be used.
-Get:1 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 libssl3 amd64 3.0.2-0ubuntu1.12 [1,901 kB]
-Get:2 http://archive.ubuntu.com/ubuntu jammy/main amd64 bzip2-doc all 1.0.8-5build1 [500 kB]
-Get:3 http://archive.ubuntu.com/ubuntu jammy/main amd64 libbz2-dev amd64 1.0.8-5build1 [32.5 kB]
-Get:4 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 libcurl4 amd64 7.81.0-1ubuntu1.14 [290 kB]
-Get:5 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 libcurl4-openssl-dev amd64 7.81.0-1ubuntu1.14 [386 kB]
-Get:6 http://archive.ubuntu.com/ubuntu jammy/universe amd64 libgetopt-complete-perl all 0.26-2.1 [49.4 kB]
-Get:7 http://archive.ubuntu.com/ubuntu jammy/main amd64 libgpm2 amd64 1.20.7-10build1 [15.3 kB]
-Get:8 http://archive.ubuntu.com/ubuntu jammy/universe amd64 libhtscodecs2 amd64 1.1.1-3 [53.2 kB]
-Get:9 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 libncurses-dev amd64 6.3-2ubuntu0.1 [381 kB]
-Get:10 http://archive.ubuntu.com/ubuntu jammy-updates/universe amd64 libtinfo5 amd64 6.3-2ubuntu0.1 [100 kB]
-Get:11 http://archive.ubuntu.com/ubuntu jammy-updates/universe amd64 libncurses5 amd64 6.3-2ubuntu0.1 [107 kB]
-Get:12 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 libncurses5-dev amd64 6.3-2ubuntu0.1 [790 B]
-Get:13 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 libssl-dev amd64 3.0.2-0ubuntu1.12 [2,373 kB]
-Get:14 http://archive.ubuntu.com/ubuntu jammy/universe amd64 tabix amd64 1.13+ds-2build1 [351 kB]
-Get:15 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 zlib1g-dev amd64 1:1.2.11.dfsg-2ubuntu9.2 [164 kB]
-Get:16 http://archive.ubuntu.com/ubuntu jammy/main amd64 liblzma-dev amd64 5.2.5-2ubuntu1 [159 kB]
-Fetched 6,861 kB in 10s (705 kB/s)
+1 upgraded, 16 newly installed, 0 to remove and 18 not upgraded.
+Need to get 6,925 kB of archives.
+After this operation, 21.8 MB of additional disk space will be used.
+Get:1 http://archive.ubuntu.com/ubuntu jammy/universe amd64 pigz amd64 2.6-1 [63.6 kB]
+Get:2 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 libssl3 amd64 3.0.2-0ubuntu1.12 [1,901 kB]
+Get:3 http://archive.ubuntu.com/ubuntu jammy/main amd64 bzip2-doc all 1.0.8-5build1 [500 kB]
+Get:4 http://archive.ubuntu.com/ubuntu jammy/main amd64 libbz2-dev amd64 1.0.8-5build1 [32.5 kB]
+Get:5 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 libcurl4 amd64 7.81.0-1ubuntu1.14 [290 kB]
+Get:6 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 libcurl4-openssl-dev amd64 7.81.0-1ubuntu1.14 [386 kB]
+Get:7 http://archive.ubuntu.com/ubuntu jammy/universe amd64 libgetopt-complete-perl all 0.26-2.1 [49.4 kB]
+Get:8 http://archive.ubuntu.com/ubuntu jammy/main amd64 libgpm2 amd64 1.20.7-10build1 [15.3 kB]
+Get:9 http://archive.ubuntu.com/ubuntu jammy/universe amd64 libhtscodecs2 amd64 1.1.1-3 [53.2 kB]
+Get:10 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 libncurses-dev amd64 6.3-2ubuntu0.1 [381 kB]
+Get:11 http://archive.ubuntu.com/ubuntu jammy-updates/universe amd64 libtinfo5 amd64 6.3-2ubuntu0.1 [100 kB]
+Get:12 http://archive.ubuntu.com/ubuntu jammy-updates/universe amd64 libncurses5 amd64 6.3-2ubuntu0.1 [107 kB]
+Get:13 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 libncurses5-dev amd64 6.3-2ubuntu0.1 [790 B]
+Get:14 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 libssl-dev amd64 3.0.2-0ubuntu1.12 [2,373 kB]
+Get:15 http://archive.ubuntu.com/ubuntu jammy/universe amd64 tabix amd64 1.13+ds-2build1 [351 kB]
+Get:16 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 zlib1g-dev amd64 1:1.2.11.dfsg-2ubuntu9.2 [164 kB]
+Get:17 http://archive.ubuntu.com/ubuntu jammy/main amd64 liblzma-dev amd64 5.2.5-2ubuntu1 [159 kB]
+Fetched 6,925 kB in 1s (5,370 kB/s)
+Selecting previously unselected package pigz.
 (Reading database ... 
(Reading database ... 5%
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(Reading database ... 100%
(Reading database ... 16004 files and directories currently installed.)
+Preparing to unpack .../archives/pigz_2.6-1_amd64.deb ...
+Unpacking pigz (2.6-1) ...
 Preparing to unpack .../libssl3_3.0.2-0ubuntu1.12_amd64.deb ...
 Unpacking libssl3:amd64 (3.0.2-0ubuntu1.12) over (3.0.2-0ubuntu1.10) ...
 Setting up libssl3:amd64 (3.0.2-0ubuntu1.12) ...
@@ -97,7 +101,7 @@ debconf: unable to initialize frontend: Dialog
 debconf: (TERM is not set, so the dialog frontend is not usable.)
 debconf: falling back to frontend: Readline
 Selecting previously unselected package bzip2-doc.
-(Reading database ... 
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(Reading database ... 90%
(Reading database ... 95%
(Reading database ... 100%
(Reading database ... 16004 files and directories currently installed.)
+(Reading database ... 
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(Reading database ... 20%
(Reading database ... 25%
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(Reading database ... 40%
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(Reading database ... 95%
(Reading database ... 100%
(Reading database ... 16013 files and directories currently installed.)
 Preparing to unpack .../00-bzip2-doc_1.0.8-5build1_all.deb ...
 Unpacking bzip2-doc (1.0.8-5build1) ...
 Selecting previously unselected package libbz2-dev:amd64.
@@ -150,6 +154,7 @@ Setting up libssl-dev:amd64 (3.0.2-0ubuntu1.12) ...
 Setting up liblzma-dev:amd64 (5.2.5-2ubuntu1) ...
 Setting up zlib1g-dev:amd64 (1:1.2.11.dfsg-2ubuntu9.2) ...
 Setting up libgetopt-complete-perl (0.26-2.1) ...
+Setting up pigz (2.6-1) ...
 Setting up libncurses5-dev:amd64 (6.3-2ubuntu0.1) ...
 Setting up libcurl4:amd64 (7.81.0-1ubuntu1.14) ...
 Setting up libtinfo5:amd64 (6.3-2ubuntu0.1) ...
@@ -200,7 +205,7 @@ The following packages will be REMOVED:
   lto-disabled-list openssh-client patch pinentry-curses xauth xz-utils
 0 upgraded, 0 newly installed, 61 to remove and 18 not upgraded.
 After this operation, 202 MB disk space will be freed.
-(Reading database ... 
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(Reading database ... 95%
(Reading database ... 100%
(Reading database ... 15276 files and directories currently installed.)
+(Reading database ... 
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(Reading database ... 100%
(Reading database ... 15285 files and directories currently installed.)
 Removing g++-11 (11.4.0-1ubuntu1~22.04) ...
 Removing gcc-11 (11.4.0-1ubuntu1~22.04) ...
 Removing binutils (2.38-4ubuntu2.3) ...
@@ -311,6 +316,12 @@ installed packages
 
 
 
+pigz:
+  Installed: 2.6-1
+  Candidate: 2.6-1
+  Version table:
+ *** 2.6-1 100
+        100 /var/lib/dpkg/status
 gzip:
   Installed: 1.10-4ubuntu4.1
   Candidate: 1.10-4ubuntu4.1