diff --git a/.gitlab-ci.Dockerfile.rl8 b/.gitlab-ci.Dockerfile.rl8
index 3c3c1b547911c314d0a0ba1ea95e8bb2ffa97b46..e92343619e407eb4aa81bbdeb02b16e857f9b215 100644
--- a/.gitlab-ci.Dockerfile.rl8
+++ b/.gitlab-ci.Dockerfile.rl8
@@ -13,6 +13,7 @@ USER root
 COPY rpms /rpms
 
 # Install Optimized RPMs, delete old RPMs
+RUN sed -i "s|http://|https://|" /etc/yum.repos.d/*.repo
 RUN yum makecache && \
     yum -y localinstall /rpms/*.rpm 
 
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 9f92c33859713587a9c64e3e0683f788b45e0ec4..951316e943c5d72dd09f41cf6b2d6a2ab63fea16 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -26,6 +26,7 @@ variables:
   GSTLAL_FIR_WHITEN: 0
 
 before_script:
+  - sed -i 's|http://|https://|' /etc/yum.repos.d/*.repo
   - if [ -d ${CI_PROJECT_DIR}/rpmbuild/RPMS ]; then yum -y install ${CI_PROJECT_DIR}/rpmbuild/RPMS/*/*.rpm; fi
 
 cache: