diff --git a/west.yml b/west.yml
index 06c3de6..f185044 100644
--- a/west.yml
+++ b/west.yml
@@ -10,7 +10,15 @@ manifest:
     - name: zephyr
       remote: zephyrproject-rtos
       revision: v4.2.1
-      import: true
+      clone-depth: 1
+      import: 
+        name-allowlist:
+          - cmsis
+          - cmsis-dsp
+          - cmsis_nn
+          - cmsis_6
+          - hal_st
+          - hal_stm32
 #    - name: app1
 #      revision: SOME_SHA_OR_BRANCH_OR_TAG
   self: