diff --git a/murano-ci/scripts/collect_results.sh b/murano-ci/scripts/collect_results.sh
index a57e9fed..35645e29 100644
--- a/murano-ci/scripts/collect_results.sh
+++ b/murano-ci/scripts/collect_results.sh
@@ -38,7 +38,7 @@ function generate_html_report() {
     local html_report="${WORKSPACE}/artifacts/report/test_report.html"
 
     if [[ -f "${WORKSPACE}/artifacts/report/test_report.xml" ]]; then
-        sudo pip install jinja2 lxml
+        sudo pip install jinja2 lxml==3.6.4
 
         STACK_HOME='/opt/stack' $(which python) "${WORKSPACE}/murano-ci/scripts/generate_html_report.py" "${xml_report}" "${html_report}"
         cp "${WORKSPACE}/artifacts/report/test_report.html" "${WORKSPACE}/index.html"