diff --git a/tests/drivers/timer/nrf_grtc_timer/testcase.yaml b/tests/drivers/timer/nrf_grtc_timer/testcase.yaml
index f611a518a70..00ac1ed584b 100644
--- a/tests/drivers/timer/nrf_grtc_timer/testcase.yaml
+++ b/tests/drivers/timer/nrf_grtc_timer/testcase.yaml
@@ -1,4 +1,7 @@
 tests:
   drivers.timer.nrf_grtc_timer:
     tags: drivers
-    platform_allow: nrf54l15pdk/nrf54l15/cpuapp
+    platform_allow:
+      - nrf54l15pdk/nrf54l15/cpuapp
+      - nrf54h20dk/nrf54h20/cpuapp
+      - nrf54h20dk/nrf54h20/cpurad