diff --git a/targets/TARGET_WICED/TOOLCHAIN_IAR/TARGET_MTB_ADV_WISE_1530/libwiced_drivers.a b/targets/TARGET_WICED/TOOLCHAIN_IAR/TARGET_MTB_ADV_WISE_1530/libwiced_drivers.a
index 9a92d8a7f5c..a6a9503f9de 100644
Binary files a/targets/TARGET_WICED/TOOLCHAIN_IAR/TARGET_MTB_ADV_WISE_1530/libwiced_drivers.a and b/targets/TARGET_WICED/TOOLCHAIN_IAR/TARGET_MTB_ADV_WISE_1530/libwiced_drivers.a differ
diff --git a/targets/TARGET_WICED/TOOLCHAIN_IAR/TARGET_MTB_MXCHIP_EMW3166/libwiced_drivers.a b/targets/TARGET_WICED/TOOLCHAIN_IAR/TARGET_MTB_MXCHIP_EMW3166/libwiced_drivers.a
index 920dea3860d..87905eea96c 100644
Binary files a/targets/TARGET_WICED/TOOLCHAIN_IAR/TARGET_MTB_MXCHIP_EMW3166/libwiced_drivers.a and b/targets/TARGET_WICED/TOOLCHAIN_IAR/TARGET_MTB_MXCHIP_EMW3166/libwiced_drivers.a differ
diff --git a/targets/TARGET_WICED/TOOLCHAIN_IAR/TARGET_MTB_USI_WM_BN_BM_22/libwiced_drivers.a b/targets/TARGET_WICED/TOOLCHAIN_IAR/TARGET_MTB_USI_WM_BN_BM_22/libwiced_drivers.a
index 951a21ccac8..35d031b0cf3 100644
Binary files a/targets/TARGET_WICED/TOOLCHAIN_IAR/TARGET_MTB_USI_WM_BN_BM_22/libwiced_drivers.a and b/targets/TARGET_WICED/TOOLCHAIN_IAR/TARGET_MTB_USI_WM_BN_BM_22/libwiced_drivers.a differ
diff --git a/targets/targets.json b/targets/targets.json
index 033a3772101..370b71ea1e5 100644
--- a/targets/targets.json
+++ b/targets/targets.json
@@ -2479,7 +2479,7 @@
     },
     "MTB_MXCHIP_EMW3166": {
         "inherits": ["FAMILY_STM32"],
-        "supported_toolchains": ["ARM", "uARM", "GCC_ARM"],
+        "supported_toolchains": ["ARM", "GCC_ARM", "IAR"],
         "core": "Cortex-M4F",
         "extra_labels_add": [
             "STM32F4",
@@ -2496,7 +2496,7 @@
             "FLASH",
             "MPU"
         ],
-        "release_versions": [],
+        "release_versions": ["5"],
         "device_name": "STM32F412ZG",
         "bootloader_supported": true,
         "config": {
@@ -2512,7 +2512,7 @@
     },
     "USI_WM_BN_BM_22": {
         "inherits": ["FAMILY_STM32"],
-        "supported_toolchains": ["ARM", "uARM", "GCC_ARM"],
+        "supported_toolchains": ["ARM", "GCC_ARM", "IAR"],
         "components_add": ["SPIF", "FLASHIAP"],
         "core": "Cortex-M4F",
         "extra_labels_add": [
@@ -2531,7 +2531,7 @@
             "FLASH",
             "MPU"
         ],
-        "release_versions": [],
+        "release_versions": ["5"],
         "device_name": "STM32F412ZG",
         "bootloader_supported": true,
         "public": false,