diff --git a/ext/build_defaults.yaml b/ext/build_defaults.yaml
index 780c59b364..860593dc75 100644
--- a/ext/build_defaults.yaml
+++ b/ext/build_defaults.yaml
@@ -9,6 +9,7 @@ foss_platforms:
   - debian-10-amd64
   - debian-11-amd64
   - debian-11-aarch64
+  - debian-12-aarch64
   - el-7-x86_64
   - el-8-x86_64
   - el-8-ppc64le
@@ -71,6 +72,8 @@ platform_repos:
     repo_location: repos/apt/bullseye
   - name: debian-11-aarch64
     repo_location: repos/apt/bullseye
+  - name: debian-12-aarch64
+    repo_location: repos/apt/bookworm
   - name: ubuntu-18.04-amd64
     repo_location: repos/apt/bionic
   - name: ubuntu-18.04-aarch64