diff --git a/Docker/Dockerfile b/Docker/Dockerfile
index 516becf3e383588a2430943e4cdacb09cfa065c2..fce6e8716d69c875c36d7793ed82bc4810b2e383 100644
--- a/Docker/Dockerfile
+++ b/Docker/Dockerfile
@@ -89,11 +89,14 @@ RUN mkdir /home/lofaruser/ && \
     chown lofaruser:lofaruser /home/lofaruser
 
 ARG LSMTool_TAG=master
+LABEL LSMTool.version.tag=${LSMTool_TAG}
+ARG LoSoTo_TAG=master
+LABEL LoSoTo.version.tag=${LoSoTo_TAG}
     
 RUN apt-get update && apt-get install -y nodejs python3-pip git wsclean
 RUN python3 -m pip install cwltool cwl-runner -e "git://github.com/darafferty/LSMTool.git@${LSMTool_TAG}#egg=LSMTool"
 
-RUN python3 -m pip install git+https://github.com/revoltek/losoto.git
+RUN python3 -m pip install -e "git+https://github.com/revoltek/losoto.git@${LoSoTo_TAG}#egg=LoSoTo"
 
 ADD L570745_uv_first10.MS.tar.xz /data
 ADD skymodels.tar.gz /data/skymodels
diff --git a/Docker/build_docker.sh b/Docker/build_docker.sh
index 33efd28ebad48c96dcd4baddce0c7a881e14a1e3..667b4fdc818b88be06335800a7f8103d8de6698b 100755
--- a/Docker/build_docker.sh
+++ b/Docker/build_docker.sh
@@ -5,20 +5,21 @@ git_clone_or_pull () {
     REPO=$1
     BRANCH=$2
     DIR=$3
-    
-    git clone -single-branch -b "${BRANCH}" "${REPO}" "${DIR}" 2> /dev/null || git -C "${DIR}" pull
+
+    git clone --single-branch -b "${BRANCH}" "${REPO}" "${DIR}" 2> /dev/null || git -C "${DIR}" pull
 }
 
 # SOFTWARE VERSIONS
 DP3_TAG=v4.1
 IDG_TAG=0.6
 LSMTool_TAG=v1.4.2
+LoSoTo_TAG=f0398b
 
 # FETCHES THE IDG
 git_clone_or_pull https://gitlab.com/astron-idg/idg/ ${IDG_TAG} idg
 
 # FETCHES DP3
-git_clone_or_pull https://github.com/lofar-astron/DP3 ${DP3_TAG} DP3 
+git_clone_or_pull https://github.com/lofar-astron/DP3 ${DP3_TAG} DP3
 
 # FETCHES THE SCRIPTS ONLY
 BRANCH=production
@@ -29,4 +30,8 @@ SCRIPT_PATH=$(realpath ${BASH_SOURCE[0]})
 
 DOCKER_PATH=$(dirname ${SCRIPT_PATH})
 
-docker build ${DOCKER_PATH} --build-arg=IDG_TAG=${IDG_TAG} --build-arg=DP3_TAG=${DP3_TAG} --build-arg=LSMTool_TAG=${LSMTool_TAG} -t lofareosc/prefactor-ci
+docker build ${DOCKER_PATH} --build-arg=IDG_TAG=${IDG_TAG}\
+                            --build-arg=DP3_TAG=${DP3_TAG}\
+                            --build-arg=LSMTool_TAG=${LSMTool_TAG}\
+                            --build-arg=LoSoTo_TAG=${LoSoTo_TAG}\
+                            -t lofareosc/prefactor-ci