diff --git a/Makefile b/Makefile
index aec3636..ad5d38a 100644
--- a/Makefile
+++ b/Makefile
@@ -65,13 +65,13 @@ endif
 # Stack size to be allocated to the Cortex-M process stack. This stack is
 # the stack used by the main() thread.
 ifeq ($(USE_PROCESS_STACKSIZE),)
-  USE_PROCESS_STACKSIZE = 0x240
+  USE_PROCESS_STACKSIZE = 0x180
 endif
 
 # Stack size to the allocated to the Cortex-M main/exceptions stack. This
 # stack is used for processing interrupts and exceptions.
 ifeq ($(USE_EXCEPTIONS_STACKSIZE),)
-  USE_EXCEPTIONS_STACKSIZE = 0x200
+  USE_EXCEPTIONS_STACKSIZE = 0x100
 endif
 
 #