diff --git a/lazyDir/centos7.Dockerfile b/lazyDir/centos7.Dockerfile
index da1ff9d..75d1e0d 100644
--- a/lazyDir/centos7.Dockerfile
+++ b/lazyDir/centos7.Dockerfile
@@ -23,18 +23,20 @@
 # Import local GPG keys and enable epel repo
 RUN rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7 && \
     yum -q clean expire-cache && \
-    yum -q -y update && \
-    yum -y install --setopt=tsflags=nodocs epel-release && \
+    yum -q makecache && \
+    yum -y install --setopt=tsflags=nodocs \
+      epel-release \
+    && \
     rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7 && \
     yum -q -y clean all --enablerepo='*'
 
 # Install common requirements
 RUN yum -q clean expire-cache && \
-    yum -q -y update && \
+    yum -q makecache && \
     yum -y install --setopt=tsflags=nodocs \
       git \
-      wget \
       unzip \
+      wget \
       which \
     && \
     yum -q -y clean all --enablerepo='*'
@@ -44,9 +46,14 @@
     rpm --import http://yum.puppetlabs.com/RPM-GPG-KEY-puppetlabs && \
     rpm --import http://yum.mariadb.org/RPM-GPG-KEY-MariaDB
 
+# Add internal CA
+RUN wget -q https://share.qiy.nl/public/certs/ca-digital-me-private-2026.crt -O /etc/pki/ca-trust/source/anchors/ca-digital-me-internal.pem && \
+    update-ca-trust force-enable && \
+    update-ca-trust extract
+
 # Enable Software Collections
 RUN yum -q clean expire-cache && \
-    yum -q -y update && \
+    yum -q makecache && \
     yum -y install --setopt=tsflags=nodocs \
       centos-release-scl \
       scl-utils-build \
@@ -56,19 +63,19 @@
 
 # Install Ruby 2.6 from SCLO repo
 RUN yum -q clean expire-cache && \
-    yum -q -y update && \
+    yum -q makecache && \
     yum -y install --setopt=tsflags=nodocs \
       rh-ruby26-ruby \
-      rh-ruby26-ruby-libs \
       rh-ruby26-ruby-devel \
-      rh-ruby26-rubygems \
+      rh-ruby26-ruby-libs \
       rh-ruby26-rubygem-bundler \
+      rh-ruby26-rubygems \
       && \
     yum -q -y clean all --enablerepo='*'
 
 # Install extra dev tools
 RUN yum -q clean expire-cache && \
-    yum -q -y update && \
+    yum -q makecache && \
     yum -y install --setopt=tsflags=nodocs \
       gcc \
       gcc-c++ \
@@ -79,7 +86,7 @@
 
 # Install NodeJS 10 from SCLO repo
 RUN yum -q clean expire-cache && \
-    yum -q -y update && \
+    yum -q makecache && \
     yum -y install --setopt=tsflags=nodocs \
       rh-nodejs10-nodejs \
       rh-nodejs10-npm \