diff --git a/.github/workflows/build_stable.yml b/.github/workflows/build_stable.yml
index 1ea8c8dfa04d..005e3f6ef730 100644
--- a/.github/workflows/build_stable.yml
+++ b/.github/workflows/build_stable.yml
@@ -10,7 +10,7 @@ jobs:
       fail-fast: true
       matrix:
         device: [m21, m31, m31s, f41]
-        ksu: [0, 1]
+        ksu: [1]
         old: [0, 1]
     name: "🚧 Build for ${{matrix.device}} KSU=${{matrix.ksu}} OLD=${{matrix.old}}"