diff --git a/.travis/mypy.docker b/.ci/mypy.docker
similarity index 100%
rename from .travis/mypy.docker
rename to .ci/mypy.docker
diff --git a/.travis/pep8.docker b/.ci/pep8.docker
similarity index 100%
rename from .travis/pep8.docker
rename to .ci/pep8.docker
diff --git a/.travis/py3.docker b/.ci/py3.6.ubuntu18.04.docker
similarity index 100%
rename from .travis/py3.docker
rename to .ci/py3.6.ubuntu18.04.docker
diff --git a/Jenkinsfile.sh b/Jenkinsfile.sh
index 174dafe..203e190 100644
--- a/Jenkinsfile.sh
+++ b/Jenkinsfile.sh
@@ -21,4 +21,7 @@ cd $PROJECTS_DIR/meqtrees-pyxis
 IMAGENAME="mtpyxispr"
 
 # build and test
-docker build -f .travis/py3.docker -t "${IMAGENAME}36:$BUILD_NUMBER" --no-cache=true .
+BUILDTAG=${IMAGENAME}36:$BUILD_NUMBER
+docker build -f .ci/py3.6.ubuntu18.04.docker  -t "${BUILDTAG}" --no-cache=true .
+#BUILDTAG=${IMAGENAME}38:$BUILD_NUMBER
+#docker build -f .ci/py3.8.ubuntu20.04.docker  -t "${BUILDTAG}" --no-cache=true .
diff --git a/Pyxis/bin/ipyxis b/Pyxis/bin/ipyxis
index 5943a65..40802e4 100755
--- a/Pyxis/bin/ipyxis
+++ b/Pyxis/bin/ipyxis
@@ -1,2 +1,2 @@
 #!/bin/bash
-exec ipython --InteractiveShellApp.exec_lines="[ 'import Pyxis ']" --autocall=2 $*
\ No newline at end of file
+exec ipython3 --InteractiveShellApp.exec_lines="[ 'import Pyxis ']" --autocall=2 $*
\ No newline at end of file
diff --git a/Pyxis/recipes/imagers-test/basic_imager_test.py b/Pyxis/recipes/imagers-test/basic_imager_test.py
index b35ba5a..c9faf44 100644
--- a/Pyxis/recipes/imagers-test/basic_imager_test.py
+++ b/Pyxis/recipes/imagers-test/basic_imager_test.py
@@ -1,4 +1,4 @@
-#!/bin/env python
+#!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
 import os
diff --git a/Pyxis/recipes/meqtrees-batch-test/batch_test.py b/Pyxis/recipes/meqtrees-batch-test/batch_test.py
index 7215b20..e8371a3 100644
--- a/Pyxis/recipes/meqtrees-batch-test/batch_test.py
+++ b/Pyxis/recipes/meqtrees-batch-test/batch_test.py
@@ -1,4 +1,4 @@
-#!/bin/env python
+#!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
 import os