diff --git a/.ci/travis/linux/before_script.sh b/.ci/travis/linux/before_script.sh
index e15a3f8666bd..8c855313e4fb 100755
--- a/.ci/travis/linux/before_script.sh
+++ b/.ci/travis/linux/before_script.sh
@@ -18,11 +18,11 @@ set -e
 pushd .docker
 
 docker --version
+docker-compose --version
+docker-compose -f $DOCKER_COMPOSE config
 #docker pull ubuntu:16.04
 docker pull "qgis/qgis3-build-deps:${DOCKER_TAG}" || true
-docker build --file deps-Dockerfile \
-             --cache-from "qgis/qgis3-build-deps:${DOCKER_TAG}"\
-             --tag "qgis/qgis3-build-deps:${DOCKER_TAG}" .
+docker build --cache-from "qgis/qgis3-build-deps:${DOCKER_TAG}" -t "qgis/qgis3-build-deps:${DOCKER_TAG}" .
 # image should be pushed even if QGIS build fails
 # but push is achieved only on branches (not for PRs)
 if [[ $DOCKER_PUSH =~ true ]]; then
diff --git a/.ci/travis/linux/install.sh b/.ci/travis/linux/install.sh
index cc1e80e6114d..138a2b3680a7 100755
--- a/.ci/travis/linux/install.sh
+++ b/.ci/travis/linux/install.sh
@@ -12,3 +12,6 @@
 #   (at your option) any later version.                                   #
 #                                                                         #
 ###########################################################################
+
+shopt -s expand_aliases
+alias python=python3
diff --git a/.ci/travis/linux/script.sh b/.ci/travis/linux/script.sh
index e331664be530..a081398624e1 100755
--- a/.ci/travis/linux/script.sh
+++ b/.ci/travis/linux/script.sh
@@ -22,8 +22,6 @@ docker-compose -f $DOCKER_COMPOSE run --rm qgis-deps
 
 mkdir -p $CCACHE_DIR
 
-docker-compose --version
-docker-compose -f $DOCKER_COMPOSE config
-docker-compose -f $DOCKER_COMPOSE run --rm qgis-build-and-test
+docker-compose -f $DOCKER_COMPOSE run --rm qgis-deps
 
 popd
diff --git a/.docker/deps-Dockerfile b/.docker/Dockerfile
similarity index 93%
rename from .docker/deps-Dockerfile
rename to .docker/Dockerfile
index 07afc33adf9c..35c93076141e 100644
--- a/.docker/deps-Dockerfile
+++ b/.docker/Dockerfile
@@ -104,3 +104,10 @@ ENV QT_SELECT=5
 # RUN ${CXX} --version
 
 RUN apt-get install -y git
+
+# RUN locale-gen en_US.UTF-8
+# ENV LANG=en_US.UTF-8
+# ENV LANGUAGE=en_US:en
+# ENV LC_ALL=en_US.UTF-8
+
+CMD /root/QGIS/.ci/travis/linux/docker-build-test.sh
diff --git a/.docker/docker-compose.travis.yml b/.docker/docker-compose.travis.yml
index ad522f6269b8..ea613df9b7f4 100644
--- a/.docker/docker-compose.travis.yml
+++ b/.docker/docker-compose.travis.yml
@@ -5,19 +5,15 @@ services:
     environment:
       - ALLOW_IP_RANGE="172.18.0.0/16"
 
-  qgis-build-and-test:
-    build:
-      context: .
-      dockerfile: build-Dockerfile
+  qgis-deps:
     tty: true
-    image: qgis/qgis3-run:${DOCKER_TAG}
+    image: qgis/qgis3-build-deps:${DOCKER_TAG}
     volumes:
       - ${TRAVIS_BUILD_DIR}:/root/QGIS
       - $HOME/.ccache:/root/.ccache  # if changed, also change env var
     links:
       - postgres
     environment:
-      - DOCKER_TAG=${DOCKER_TAG}
       - CCACHE_DIR=/root/.ccache
       - CTEST_BUILD_DIR=/root/QGIS
       - TRAVIS_BRANCH=${TRAVIS_BRANCH}