diff --git a/Dockerfile.oed-4_server b/Dockerfile.oed-4_server
new file mode 100644
index 0000000..02cce30
--- /dev/null
+++ b/Dockerfile.oed-4_server
@@ -0,0 +1,13 @@
+FROM coreoasis/api_server:2.3.9
+
+USER root 
+RUN apt-get update && apt-get -y install git python3-pip && rm -rf /var/lib/apt/lists/*
+USER server
+
+# Install ODS-Tools from git branch (Optional) 'docker build --build-arg ods_tools_branch=develop'
+ARG ods_tools_branch
+RUN if [ ! -z "$ods_tools_branch" ] ; then \
+    apt update && apt install -y git; \
+    pip uninstall ods-tools -y; \
+    pip install --user --no-warn-script-location -v git+https://git@github.com/OasisLMF/ODS_Tools.git@${ods_tools_branch}#egg=ods-tools; \
+  fi
diff --git a/Dockerfile.oed-4_worker b/Dockerfile.oed-4_worker
new file mode 100644
index 0000000..72b3a0f
--- /dev/null
+++ b/Dockerfile.oed-4_worker
@@ -0,0 +1,17 @@
+FROM coreoasis/model_worker:2.3.9
+
+# Install ODS-Tools from git branch (Optional) 'docker build --build-arg ods_tools_branch=develop'
+ARG ods_tools_branch
+RUN if [ ! -z "$ods_tools_branch" ] ; then \
+    apt update && apt install -y git; \
+    pip uninstall ods-tools -y; \
+    pip install --user --no-warn-script-location -v git+https://git@github.com/OasisLMF/ODS_Tools.git@${ods_tools_branch}#egg=ods-tools; \
+  fi
+
+# install MDK from git branch (Optional) 'docker build --build-arg oasislmf_branch=develop'
+ARG oasislmf_branch
+RUN if [ ! -z "$oasislmf_branch" ] ; then \
+    apt update && apt install -y git; \
+    pip uninstall oasislmf -y; \
+    pip install -v git+https://git@github.com/OasisLMF/OasisLMF.git@${oasislmf_branch}#egg=oasislmf[extra]; \
+  fi
diff --git a/build.sh b/build.sh
new file mode 100755
index 0000000..f5ecbec
--- /dev/null
+++ b/build.sh
@@ -0,0 +1,19 @@
+#!/bin/bash
+
+set -x
+
+ODS_BRANCH='feature/v4_integration'
+LMF_BRANCH='feature/oed_v4'
+IMG_TAG='oed-4-dev'
+
+if [ ! -z $ODS_BRANCH ]; then
+    BUILD_ARGS_WORKER="${BUILD_ARGS_WORKER} --build-arg ods_tools_branch=${ODS_BRANCH}"
+    BUILD_ARGS_SERVER="${BUILD_ARGS_SERVER} --build-arg ods_tools_branch=${ODS_BRANCH}"
+fi
+
+if [ ! -z $LMF_BRANCH ]; then
+    BUILD_ARGS_WORKER="${BUILD_ARGS_WORKER} --build-arg oasislmf_branch=${LMF_BRANCH}"
+fi
+
+docker build -f Dockerfile.oed-4_worker $BUILD_ARGS_WORKER -t coreoasis/model_worker:$IMG_TAG .
+docker build -f Dockerfile.oed-4_server $BUILD_ARGS_SERVER -t coreoasis/api_server:$IMG_TAG .
diff --git a/install.sh b/install.sh
index 595c6f7..a97a353 100755
--- a/install.sh
+++ b/install.sh
@@ -3,9 +3,9 @@ set -e
 
 SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 
-export VERS_MDK=2.3.5
-export VERS_API=2.3.5
-export VERS_WORKER=2.3.5
+export VERS_MDK=2.3.9
+export VERS_API='oed-4-dev'
+export VERS_WORKER='oed-4-dev'
 export VERS_UI=1.11.7
 export VERS_PIWIND='stable/2.3.x'
 
@@ -39,7 +39,7 @@ if [[ $(docker volume ls | grep OasisData -c) -gt 1 || -d $SCRIPT_DIR/$GIT_PIWIN
         docker-compose -f $SCRIPT_DIR/oasis-platform.yml -f $SCRIPT_DIR/oasis-ui-standalone.yml down --remove-orphans
         set -e
         printf "Deleting docker data: \n"
-        rm -rf $SCRIPT_DIR/$GIT_PIWIND
+        #rm -rf $SCRIPT_DIR/$GIT_PIWIND
         docker volume ls | grep OasisData | awk 'BEGIN { FS = "[ \t\n]+" }{ print $2 }' | xargs -r docker volume rm
     else
         echo "-- Reinstall aborted -- "
@@ -48,12 +48,12 @@ if [[ $(docker volume ls | grep OasisData -c) -gt 1 || -d $SCRIPT_DIR/$GIT_PIWIN
 fi
 
 
-# --- Clone PiWind ---------------------------------------------------------- #
-
-mkdir -p $SCRIPT_DIR/$GIT_PIWIND
-cd $SCRIPT_DIR/$GIT_PIWIND
-git clone --depth 1 --branch $VERS_PIWIND https://github.com/OasisLMF/$GIT_PIWIND.git .
-git checkout $VERS_PIWIND
+## --- Clone PiWind ---------------------------------------------------------- #
+#
+#mkdir -p $SCRIPT_DIR/$GIT_PIWIND
+#cd $SCRIPT_DIR/$GIT_PIWIND
+#git clone --depth 1 --branch $VERS_PIWIND https://github.com/OasisLMF/$GIT_PIWIND.git .
+#git checkout $VERS_PIWIND
 
 
 
@@ -62,9 +62,8 @@ git checkout $VERS_PIWIND
 cd $SCRIPT_DIR
 
 set +e
-docker pull ${WORKER_IMG}:${VERS_WORKER}
-docker pull ${SERVER_IMG}:${VERS_API}
 docker pull coreoasis/oasisui_app:$VERS_UI
+./build.sh
 set -e
 
 # RUN OasisPlatform / OasisUI / Portainer