diff --git a/apps/bleprph/syscfg.yml b/apps/bleprph/syscfg.yml
index 56a508304..c39e6b01e 100644
--- a/apps/bleprph/syscfg.yml
+++ b/apps/bleprph/syscfg.yml
@@ -58,7 +58,7 @@ syscfg.vals:
     CONFIG_MGMT: 1
 
     # OS main/default task
-    OS_MAIN_STACK_SIZE: 468
+    OS_MAIN_STACK_SIZE: 512
 
     # Lots of smaller mbufs are required for smp using typical BLE ATT MTU
     # values.