diff --git a/tests/modules/uoscore/prj.conf b/tests/modules/uoscore/prj.conf
index af103ceb24f..5d2b3d18b78 100644
--- a/tests/modules/uoscore/prj.conf
+++ b/tests/modules/uoscore/prj.conf
@@ -1,5 +1,6 @@
 CONFIG_ZTEST=y
 CONFIG_ZTEST_STACK_SIZE=16384
+CONFIG_MAIN_STACK_SIZE=4096
 
 CONFIG_ENTROPY_GENERATOR=y
 CONFIG_TEST_RANDOM_GENERATOR=y