diff --git a/metadata/cx.ring.yml b/metadata/cx.ring.yml
index b0fcebde94..b9f4882fcf 100644
--- a/metadata/cx.ring.yml
+++ b/metadata/cx.ring.yml
@@ -2091,8 +2091,9 @@ Builds:
     submodules: true
     sudo:
       - apt-get update
-      - apt-get install -y cmake g++ swig autoconf automake m4 libtool pkg-config
-        yasm tar gettext autopoint xz-utils bzip2 make python-is-python3
+      - apt-get install -y g++ swig autoconf automake m4 libtool pkg-config yasm tar
+        gettext autopoint xz-utils bzip2 make python-is-python3
+      - apt-get install -y -t bullseye-backports cmake
     gradle:
       - noPush
     rm: