diff --git a/samples/bluetooth/mesh_provisioner/prj.conf b/samples/bluetooth/mesh_provisioner/prj.conf
index 3b40d2c2c7b9a10..bfc6d5a12417cfd 100644
--- a/samples/bluetooth/mesh_provisioner/prj.conf
+++ b/samples/bluetooth/mesh_provisioner/prj.conf
@@ -1,5 +1,5 @@
 #CONFIG_INIT_STACKS=y
-CONFIG_MAIN_STACK_SIZE=1408
+CONFIG_MAIN_STACK_SIZE=2048
 CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=2048
 # The Bluetooth API should not be used from a preemptive thread:
 CONFIG_MAIN_THREAD_PRIORITY=-2