diff --git a/ansible/playbooks/roles/compatibility_layer/defaults/main.yml b/ansible/playbooks/roles/compatibility_layer/defaults/main.yml
index 7a6ec0ed..99501e22 100644
--- a/ansible/playbooks/roles/compatibility_layer/defaults/main.yml
+++ b/ansible/playbooks/roles/compatibility_layer/defaults/main.yml
@@ -32,6 +32,9 @@ prefix_unmask_packages: |
 prefix_bootstrap_use_flags: |
   # make sure that gold linker is installed with binutils
   sys-devel/binutils gold
+  # only install Python 3.11
+  */* PYTHON_TARGETS: -* python3_11
+  */* PYTHON_SINGLE_TARGET: -* python3_11
 prefix_use_builtin_bootstrap: false
 prefix_custom_bootstrap_script:
   local: "{{ playbook_dir }}/../../bootstrap-prefix.sh"