diff --git a/tests/kernel/sleep/testcase.yaml b/tests/kernel/sleep/testcase.yaml
index 21d7846941f7..bf577f6ac830 100644
--- a/tests/kernel/sleep/testcase.yaml
+++ b/tests/kernel/sleep/testcase.yaml
@@ -13,5 +13,9 @@ tests:
       - kernel
       - sleep
       - libc
+    platform_exclude:
+      - npcx4m8f_evb
+      - npcx7m6fb_evb
+      - npcx9m6f_evb
     extra_configs:
       - CONFIG_MINIMAL_LIBC=y