diff --git a/tests/lib/cmsis_dsp/transform/testcase.yaml b/tests/lib/cmsis_dsp/transform/testcase.yaml
index fbd1a80409c..e888da804b9 100644
--- a/tests/lib/cmsis_dsp/transform/testcase.yaml
+++ b/tests/lib/cmsis_dsp/transform/testcase.yaml
@@ -47,7 +47,7 @@ tests:
       - CONFIG_CMSIS_DSP_TEST_TRANSFORM_RF32=y
   libraries.cmsis_dsp.transform.cf64:
     min_flash: 1024
-    min_ram: 64
+    min_ram: 96
     extra_args: CONF_FILE=prj_base.conf
     extra_configs:
       - CONFIG_CMSIS_DSP_TEST_TRANSFORM_CF64=y