diff --git a/zephyr/prj.mdef b/zephyr/prj.mdef
index 5a7312f89..ae30328f8 100644
--- a/zephyr/prj.mdef
+++ b/zephyr/prj.mdef
@@ -2,4 +2,4 @@
 
 % TASK NAME  PRIO ENTRY STACK GROUPS
 % ==================================
-  TASK MAIN  7    main  4096 [EXE]
+  TASK MAIN  7    main  8192 [EXE]