diff --git a/targets/f7/stm32wb55xx_flash.ld b/targets/f7/stm32wb55xx_flash.ld
index 524da6fc3..ef61bb238 100644
--- a/targets/f7/stm32wb55xx_flash.ld
+++ b/targets/f7/stm32wb55xx_flash.ld
@@ -3,7 +3,7 @@ ENTRY(Reset_Handler)
 /* Highest address of the user mode stack */
 _stack_end = 0x20030000;    /* end of RAM */
 /* Generate a link error if heap and stack don't fit into RAM */
-_stack_size = 0x200; /* required amount of stack */
+_stack_size = 0x400; /* required amount of stack */
 
 MEMORY {
     FLASH (rx)  : ORIGIN = 0x08000000, LENGTH = 1024K
diff --git a/targets/f7/stm32wb55xx_ram_fw.ld b/targets/f7/stm32wb55xx_ram_fw.ld
index f0e8ad678..93579788d 100644
--- a/targets/f7/stm32wb55xx_ram_fw.ld
+++ b/targets/f7/stm32wb55xx_ram_fw.ld
@@ -3,7 +3,7 @@ ENTRY(Reset_Handler)
 /* Highest address of the user mode stack */
 _stack_end = 0x20030000;    /* end of RAM */
 /* Generate a link error if heap and stack don't fit into RAM */
-_stack_size = 0x200; /* required amount of stack */
+_stack_size = 0x400; /* required amount of stack */
 
 MEMORY {
     FLASH (rx)  : ORIGIN = 0x08000000, LENGTH = 1024K