diff --git a/Dockerfile b/Dockerfile
index 56b4a03..5297dfd 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,7 +3,7 @@
 #
 # Docker image to build Geniux images.
 
-ARG base_image_version=1.8
+ARG base_image_version=1.9
 FROM yocto-geniux-base:v${base_image_version}
 LABEL version="3.2" description="Geniux builder" maintainer="carles.fernandez@cttc.es"
 
diff --git a/base-image/Dockerfile b/base-image/Dockerfile
index b987543..9ccb4fe 100644
--- a/base-image/Dockerfile
+++ b/base-image/Dockerfile
@@ -4,7 +4,7 @@
 # Yocto Geniux base image to help building Geniux.
 
 FROM ubuntu:18.04
-LABEL version="1.8" description="Yocto Geniux base image" maintainer="carles.fernandez@cttc.es"
+LABEL version="1.9" description="Yocto Geniux base image" maintainer="carles.fernandez@cttc.es"
 
 # Install all Linux packages required for Yocto builds, plus other packages used
 # in this file below, and in the interactive mode
@@ -77,6 +77,7 @@ RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get -y install \
   sudo \
   tar \
   texinfo \
+  tmux \
   ubuntu-keyring \
   unzip \
   util-linux \
diff --git a/base-image/Dockerfile2 b/base-image/Dockerfile2
index fcb385c..f970599 100644
--- a/base-image/Dockerfile2
+++ b/base-image/Dockerfile2
@@ -4,7 +4,7 @@
 # Yocto Geniux base image to help building Geniux.
 
 FROM ubuntu:20.04
-LABEL version="2.2" description="Yocto Geniux base image" maintainer="carles.fernandez@cttc.es"
+LABEL version="2.3" description="Yocto Geniux base image" maintainer="carles.fernandez@cttc.es"
 
 # Install all Linux packages required for Yocto builds, plus other packages used
 # in this file below, and in the interactive mode
@@ -76,6 +76,7 @@ RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get -y install \
     sudo \
     tar \
     texinfo \
+    tmux \
     ubuntu-keyring \
     unzip \
     util-linux \
diff --git a/base-image/Dockerfile3 b/base-image/Dockerfile3
index 3d8cacf..2b557a0 100644
--- a/base-image/Dockerfile3
+++ b/base-image/Dockerfile3
@@ -4,7 +4,7 @@
 # Yocto Geniux base image to help building Geniux.
 
 FROM ubuntu:22.04
-LABEL version="3.2" description="Yocto Geniux base image" maintainer="carles.fernandez@cttc.es"
+LABEL version="3.3" description="Yocto Geniux base image" maintainer="carles.fernandez@cttc.es"
 
 
 RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get -y install \
@@ -73,6 +73,7 @@ RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get -y install \
     tftpd \
     tar \
     texinfo \
+    tmux \
     ubuntu-keyring \
     unzip \
     util-linux \
diff --git a/geniux-builder.sh b/geniux-builder.sh
index fb9b998..c6c5978 100755
--- a/geniux-builder.sh
+++ b/geniux-builder.sh
@@ -36,12 +36,12 @@ if [[ $GENIUX_VERSION == "rocko" || $GENIUX_VERSION == "sumo" || $GENIUX_VERSION
     $GENIUX_VERSION == "gatesgarth" || $GENIUX_VERSION == "hardknott" || $GENIUX_VERSION == "honister" || \
     $GENIUX_VERSION == "kirkstone"  || $GENIUX_VERSION == "langdale" ]]
     then
-        YOCTO_GENIUX_BASE_IMAGE_VERSION="1.8"
+        YOCTO_GENIUX_BASE_IMAGE_VERSION="1.9"
     elif [[ $GENIUX_VERSION == "mickledore" ]]
         then
-            YOCTO_GENIUX_BASE_IMAGE_VERSION="2.2"
+            YOCTO_GENIUX_BASE_IMAGE_VERSION="2.3"
     else
-        YOCTO_GENIUX_BASE_IMAGE_VERSION="3.2"
+        YOCTO_GENIUX_BASE_IMAGE_VERSION="3.3"
 fi
 
 YOCTO_GENIUX_BASE_IMAGE="yocto-geniux-base:v$YOCTO_GENIUX_BASE_IMAGE_VERSION"