2 files changed, 2 insertions, 1 deletions

diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 8229c6575..38d121c49 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -22,7 +22,7 @@ build_ubuntu_package:
         # - python3 contrib/sort.py etc/profile-*/*.profile etc/inc/*.inc
 
 build_debian_package:
-    image: debian:stretch
+    image: debian:buster
     script:
         - apt-get update -qq
         - >
diff --git a/RELNOTES b/RELNOTES
index 63679af80..72bdeb8f7 100644
--- a/RELNOTES
+++ b/RELNOTES
@@ -27,6 +27,7 @@ firejail (0.9.73) baseline; urgency=low
   * ci: fix swapped name/email arguments in debian_ci (#5795)
   * ci: formatting and misc improvements (#5802)
   * ci: run for every branch instead of just master (#5815)
+  * ci: upgrade debian:stretch to debian:buster (#5818)
   * test: split individual test groups in github workflows
   * test: add chroot, appimage and network tests in github workflows
   * docs: remove apparmor options in --help when building without apparmor