diff --git a/targets/TARGET_TT/TARGET_TT_M4G9/Periph_Driver/inc/txz_gpio.h b/targets/TARGET_TT/TARGET_TT_M4G9/Periph_Driver/inc/txz_gpio.h
index 7088efa2ba..fc21163d8c 100644
--- a/targets/TARGET_TT/TARGET_TT_M4G9/Periph_Driver/inc/txz_gpio.h
+++ b/targets/TARGET_TT/TARGET_TT_M4G9/Periph_Driver/inc/txz_gpio.h
@@ -5,7 +5,7 @@
  * @version V1.0.0.
  * $Date:: 2017-11-09 16:44:27 #$
  * 
- * DO NOT USE THIS SOFTWARE WITHOUT THE SOFTWARE LISENCE AGREEMENT.
+ * SPDX-License-Identifier: Apache-2.0
  * 
  * (C)Copyright TOSHIBA MICROELECTRONICS CORPORATION 2017 All rights reserved
  *******************************************************************************
diff --git a/targets/TARGET_TT/TARGET_TT_M4G9/Periph_Driver/inc/txz_tspi.h b/targets/TARGET_TT/TARGET_TT_M4G9/Periph_Driver/inc/txz_tspi.h
index 0996525f10..1f422aa07d 100644
--- a/targets/TARGET_TT/TARGET_TT_M4G9/Periph_Driver/inc/txz_tspi.h
+++ b/targets/TARGET_TT/TARGET_TT_M4G9/Periph_Driver/inc/txz_tspi.h
@@ -5,7 +5,7 @@
  * @version V1.0.0.3
  * $Date:: 2018-02-28 13:37:55 #$
  * 
- * DO NOT USE THIS SOFTWARE WITHOUT THE SOFTWARE LISENCE AGREEMENT.
+ * SPDX-License-Identifier: Apache-2.0
  * 
  * (C)Copyright TOSHIBA MICROELECTRONICS CORPORATION 2017 All rights reserved
  *******************************************************************************
diff --git a/targets/TARGET_TT/TARGET_TT_M4G9/Periph_Driver/src/txz_gpio.c b/targets/TARGET_TT/TARGET_TT_M4G9/Periph_Driver/src/txz_gpio.c
index 577aa51781..f7f84fd125 100644
--- a/targets/TARGET_TT/TARGET_TT_M4G9/Periph_Driver/src/txz_gpio.c
+++ b/targets/TARGET_TT/TARGET_TT_M4G9/Periph_Driver/src/txz_gpio.c
@@ -5,7 +5,7 @@
  * @version V1.0.0.2
  * $Date:: 2018-04-11 14:13:48 #$
  * 
- * DO NOT USE THIS SOFTWARE WITHOUT THE SOFTWARE LISENCE AGREEMENT.
+ * SPDX-License-Identifier: Apache-2.0
  * 
  * (C)Copyright TOSHIBA MICROELECTRONICS CORPORATION 2017 All rights reserved
  *******************************************************************************
diff --git a/targets/TARGET_TT/TARGET_TT_M4G9/Periph_Driver/src/txz_tspi.c b/targets/TARGET_TT/TARGET_TT_M4G9/Periph_Driver/src/txz_tspi.c
index 924ccee9bf..e8854d7510 100644
--- a/targets/TARGET_TT/TARGET_TT_M4G9/Periph_Driver/src/txz_tspi.c
+++ b/targets/TARGET_TT/TARGET_TT_M4G9/Periph_Driver/src/txz_tspi.c
@@ -5,7 +5,7 @@
  * @version V1.0.0.0
  * $Date:: 2018-01-25 17:07:20 #$
  * 
- * DO NOT USE THIS SOFTWARE WITHOUT THE SOFTWARE LISENCE AGREEMENT.
+ * SPDX-License-Identifier: Apache-2.0
  * 
  * (C)Copyright TOSHIBA MICROELECTRONICS CORPORATION 2017 All rights reserved
  *******************************************************************************
diff --git a/targets/TARGET_TT/TARGET_TT_M4G9/device/TOOLCHAIN_ARM_STD/startup_TMPM4G9.S b/targets/TARGET_TT/TARGET_TT_M4G9/device/TOOLCHAIN_ARM_STD/startup_TMPM4G9.S
index b4344393ef..704821528c 100644
--- a/targets/TARGET_TT/TARGET_TT_M4G9/device/TOOLCHAIN_ARM_STD/startup_TMPM4G9.S
+++ b/targets/TARGET_TT/TARGET_TT_M4G9/device/TOOLCHAIN_ARM_STD/startup_TMPM4G9.S
@@ -7,7 +7,7 @@
 ; * $Date:: 2017-10-04 #$
 ; *------- <<< Use Configuration Wizard in Context Menu >>> ------------------
 ; * 
-; * DO NOT USE THIS SOFTWARE WITHOUT THE SOFTWARE LISENCE AGREEMENT.
+; * SPDX-License-Identifier: Apache-2.0
 ; * 
 ; * (C)Copyright TOSHIBA MICROELECTRONICS CORPORATION 2017 All rights reserved
 ; *******************************************************************************
diff --git a/targets/TARGET_TT/TARGET_TT_M4G9/device/system_TMPM4G9.c b/targets/TARGET_TT/TARGET_TT_M4G9/device/system_TMPM4G9.c
index 99b94dc92e..d2208ec40c 100644
--- a/targets/TARGET_TT/TARGET_TT_M4G9/device/system_TMPM4G9.c
+++ b/targets/TARGET_TT/TARGET_TT_M4G9/device/system_TMPM4G9.c
@@ -6,7 +6,7 @@
  * @version 1.0.0.0
  * $Date:: 2018-04-02 #$
  * 
- * DO NOT USE THIS SOFTWARE WITHOUT THE SOFTWARE LISENCE AGREEMENT.
+ * SPDX-License-Identifier: Apache-2.0
  * 
  * (C)Copyright TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION 2018 All rights reserved
  *******************************************************************************
diff --git a/targets/TARGET_TT/TARGET_TT_M4G9/device/system_TMPM4G9.h b/targets/TARGET_TT/TARGET_TT_M4G9/device/system_TMPM4G9.h
index 538fe0b40a..9ea28b81a0 100644
--- a/targets/TARGET_TT/TARGET_TT_M4G9/device/system_TMPM4G9.h
+++ b/targets/TARGET_TT/TARGET_TT_M4G9/device/system_TMPM4G9.h
@@ -6,7 +6,7 @@
  * @version V0.0.0.0
  * $Date:: 2018-04-02 #$
  * 
- * DO NOT USE THIS SOFTWARE WITHOUT THE SOFTWARE LISENCE AGREEMENT.
+ * SPDX-License-Identifier: Apache-2.0
  * 
  * (C)Copyright TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION 2017 All rights reserved
  *****************************************************************************