diff --git a/.zuul.yaml b/.zuul.yaml
index 79c186bf80..c07b32c18e 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -606,16 +606,18 @@
       enable_fips: true
 
 - project-template:
-   name: swift-jobs-arm64
-   description: |
-     Runs tests for an OpenStack Python project under the CPython
-     version 3 releases designated for testing on top of ARM64 architecture.
-   check-arm64:
-     jobs:
-       - swift-tox-py38-arm64
-       - swift-tox-py312-arm64
-       - swift-tox-func-encryption-py38-arm64
-       - swift-tox-func-py38-arm64
+    name: swift-jobs-arm64
+    description: |
+      Runs tests for an OpenStack Python project under the CPython
+      version 3 releases designated for testing on top of ARM64 architecture.
+    check-arm64:
+      jobs:
+        - swift-tox-py312-arm64
+    experimental:
+      jobs:
+        - swift-tox-py38-arm64
+        - swift-tox-func-encryption-py38-arm64
+        - swift-tox-func-py38-arm64
 
 - project:
     templates: