diff --git a/tests/dockerfiles/Dockerfile.centos-6 b/tests/dockerfiles/Dockerfile.centos-6
index 164d3cd..fef4a5e 100644
--- a/tests/dockerfiles/Dockerfile.centos-6
+++ b/tests/dockerfiles/Dockerfile.centos-6
@@ -9,4 +9,4 @@ RUN echo -e '[local]\nlocalhost ansible_connection=local' > /etc/ansible/hosts
 
 VOLUME ["/sys/fs/cgroup"]
 
-CMD ["/usr/sbin/init"]
+CMD ["/sbin/init"]
diff --git a/tests/dockerfiles/Dockerfile.debian-jessie b/tests/dockerfiles/Dockerfile.debian-jessie
index 8d38f0c..b63e28f 100644
--- a/tests/dockerfiles/Dockerfile.debian-jessie
+++ b/tests/dockerfiles/Dockerfile.debian-jessie
@@ -8,6 +8,7 @@ RUN apt-get update -y && apt-get install -y --no-install-recommends \
     python-dev \
     python-pip \
     git \
+    apt-transport-https
  && rm -rf /var/lib/apt/lists/*
 
 RUN pip install --upgrade setuptools && pip install ansible
diff --git a/tests/dockerfiles/Dockerfile.debian-stretch b/tests/dockerfiles/Dockerfile.debian-stretch
index ee2fbc7..8481241 100644
--- a/tests/dockerfiles/Dockerfile.debian-stretch
+++ b/tests/dockerfiles/Dockerfile.debian-stretch
@@ -9,6 +9,7 @@ RUN apt-get update -y && apt-get install -y --no-install-recommends \
     python-pip \
     git \
     systemd \
+    apt-transport-https
  && rm -rf /var/lib/apt/lists/*
 
 RUN pip install --upgrade setuptools && pip install ansible
diff --git a/tests/dockerfiles/Dockerfile.ubuntu-trusty b/tests/dockerfiles/Dockerfile.ubuntu-trusty
index c9687d2..3d3466a 100644
--- a/tests/dockerfiles/Dockerfile.ubuntu-trusty
+++ b/tests/dockerfiles/Dockerfile.ubuntu-trusty
@@ -5,6 +5,7 @@ RUN apt-get update && apt-get dist-upgrade -y && apt-get install -y software-pro
 RUN apt-add-repository -y ppa:ansible/ansible && apt-get update && apt-get install -y \
     git \
     ansible \
+    apt-transport-https
  && rm -rf /var/lib/apt/lists/*
 
 RUN echo "[local]\nlocalhost ansible_connection=local" > /etc/ansible/hosts
diff --git a/tests/dockerfiles/Dockerfile.ubuntu-xenial b/tests/dockerfiles/Dockerfile.ubuntu-xenial
index 2faaba1..d5457d3 100644
--- a/tests/dockerfiles/Dockerfile.ubuntu-xenial
+++ b/tests/dockerfiles/Dockerfile.ubuntu-xenial
@@ -5,6 +5,7 @@ RUN apt-get update && apt-get dist-upgrade -y && apt-get install -y software-pro
 RUN apt-add-repository -y ppa:ansible/ansible && apt-get update && apt-get install -y \
     git \
     ansible \
+    apt-transport-https
  && rm -rf /var/lib/apt/lists/*
 
 RUN echo "[local]\nlocalhost ansible_connection=local" > /etc/ansible/hosts