diff --git a/t/lib/Dockerfile.environ.mariadb b/t/lib/Dockerfile.environ.mariadb
index 7d050212..365350cd 100644
--- a/t/lib/Dockerfile.environ.mariadb
+++ b/t/lib/Dockerfile.environ.mariadb
@@ -1,11 +1,11 @@
-FROM opensuse/leap:15.4
+FROM opensuse/leap:15.5
 ENV container docker
 
 ENV LANG en_US.UTF-8
 
 RUN sed -i 's,http://download.opensuse.org,http://mirrorcache.opensuse.org/download,g' /etc/zypp/repos.d/*repo
-RUN zypper ar -f http://mirrorcache.opensuse.org/repositories/openSUSE:infrastructure:MirrorCache/15.4 mc
-RUN zypper ar -f http://mirrorcache.opensuse.org/repositories/devel:/languages:/perl/15.4 perl
+RUN zypper ar -f http://mirrorcache.opensuse.org/repositories/openSUSE:infrastructure:MirrorCache/15.5 mc
+RUN zypper ar -f http://mirrorcache.opensuse.org/repositories/devel:/languages:/perl/15.5 perl
 RUN zypper --gpg-auto-import-keys ref
 
 # install MirrorCache here to fetch all dependencies
diff --git a/t/lib/Dockerfile.environ.mariadb.experimental b/t/lib/Dockerfile.environ.mariadb.experimental
index bc4dc1b5..40183e08 100644
--- a/t/lib/Dockerfile.environ.mariadb.experimental
+++ b/t/lib/Dockerfile.environ.mariadb.experimental
@@ -1,12 +1,12 @@
-FROM opensuse/leap:15.4
+FROM opensuse/leap:15.5
 ENV container docker
 
 ENV LANG en_US.UTF-8
 
-RUN sed -i 's,http://download.opensuse.org,http://mirrorcache.opensuse.org/download,g' /etc/zypp/repos.d/*repo
-RUN zypper ar -f http://mirrorcache.opensuse.org/repositories/openSUSE:infrastructure:MirrorCache/15.4 mc
-RUN zypper ar -f http://mirrorcache.opensuse.org/repositories/devel:/languages:/perl/15.4 perl
-RUN zypper ar -f https://mirror.mariadb.org/yum/11.0.1/sles/15.4/x86_64 mariadb
+RUN zypper -n in curl # rpm --import needs curl atm
+RUN zypper ar -f http://mirrorcache.opensuse.org/repositories/openSUSE:infrastructure:MirrorCache/15.5 mc
+RUN zypper ar -f http://mirrorcache.opensuse.org/repositories/devel:/languages:/perl/15.5 perl
+RUN zypper ar -f https://mirror.mariadb.org/yum/11.2.1/sles/15/x86_64 mariadb
 RUN rpm --import https://yum.mariadb.org/RPM-GPG-KEY-MariaDB
 RUN zypper --gpg-auto-import-keys ref
 
diff --git a/t/lib/Dockerfile.environ.postgresql b/t/lib/Dockerfile.environ.postgresql
index 0d71ee7f..00381acb 100644
--- a/t/lib/Dockerfile.environ.postgresql
+++ b/t/lib/Dockerfile.environ.postgresql
@@ -1,10 +1,10 @@
-FROM opensuse/leap:15.4
+FROM opensuse/leap:15.5
 ENV container docker
 
 ENV LANG en_US.UTF-8
 
 RUN sed -i 's,http://download.opensuse.org,http://mirrorcache.opensuse.org/download,g' /etc/zypp/repos.d/*repo
-RUN zypper ar -f http://mirrorcache.opensuse.org/repositories/openSUSE:infrastructure:MirrorCache/15.4 mc
+RUN zypper ar -f http://mirrorcache.opensuse.org/repositories/openSUSE:infrastructure:MirrorCache/15.5 mc
 RUN zypper --gpg-auto-import-keys ref
 
 # install MirrorCache here to fetch all dependencies
diff --git a/t/lib/Dockerfile.systemd.mariadb b/t/lib/Dockerfile.systemd.mariadb
index 76148266..4df4b1cd 100644
--- a/t/lib/Dockerfile.systemd.mariadb
+++ b/t/lib/Dockerfile.systemd.mariadb
@@ -1,9 +1,9 @@
-FROM registry.opensuse.org/opensuse/leap:15.4
+FROM registry.opensuse.org/opensuse/leap:15.5
 ENV container podman
 
 ENV LANG en_US.UTF-8
 
-RUN zypper ar -f http://mirrorcache.opensuse.org/repositories/openSUSE:infrastructure:MirrorCache/15.4 mc
+RUN zypper ar -f http://mirrorcache.opensuse.org/repositories/openSUSE:infrastructure:MirrorCache/15.5 mc
 RUN zypper --gpg-auto-import-keys ref
 
 RUN zypper -vvvn install systemd curl sudo iputils vi
diff --git a/t/lib/Dockerfile.systemd.postgresql b/t/lib/Dockerfile.systemd.postgresql
index a17724b4..60e21942 100644
--- a/t/lib/Dockerfile.systemd.postgresql
+++ b/t/lib/Dockerfile.systemd.postgresql
@@ -1,9 +1,9 @@
-FROM registry.opensuse.org/opensuse/leap:15.4
+FROM registry.opensuse.org/opensuse/leap:15.5
 ENV container podman
 
 ENV LANG en_US.UTF-8
 
-RUN zypper ar -f http://mirrorcache.opensuse.org/repositories/openSUSE:infrastructure:MirrorCache/15.4 mc
+RUN zypper ar -f http://mirrorcache.opensuse.org/repositories/openSUSE:infrastructure:MirrorCache/15.5 mc
 RUN zypper --gpg-auto-import-keys ref
 
 RUN zypper -vvvn install systemd curl sudo iputils vi