diff --git a/targets/targets.json b/targets/targets.json
index 32711baa823..be8753d3f3f 100644
--- a/targets/targets.json
+++ b/targets/targets.json
@@ -429,8 +429,7 @@
         "is_disk_virtual": true,
         "supported_toolchains": [
             "ARM",
-            "GCC_ARM",
-            "IAR"
+            "GCC_ARM"
         ],
         "inherits": [
             "Target"
@@ -487,8 +486,7 @@
         "is_disk_virtual": true,
         "supported_toolchains": [
             "GCC_ARM",
-            "ARM",
-            "IAR"
+            "ARM"
         ],
         "inherits": [
             "Target"
@@ -538,8 +536,7 @@
         "core": "Cortex-M4F",
         "supported_toolchains": [
             "ARM",
-            "GCC_ARM",
-            "IAR"
+            "GCC_ARM"
         ],
         "components_add": [
             "FLASHIAP"
@@ -628,8 +625,7 @@
         "core": "Cortex-M0+",
         "supported_toolchains": [
             "GCC_ARM",
-            "ARM",
-            "IAR"
+            "ARM"
         ],
         "extra_labels": [
             "Freescale",
@@ -698,8 +694,7 @@
         "core": "Cortex-M0+",
         "supported_toolchains": [
             "ARM",
-            "GCC_ARM",
-            "IAR"
+            "GCC_ARM"
         ],
         "extra_labels": [
             "Freescale",
@@ -762,8 +757,7 @@
         "core": "Cortex-M4F",
         "supported_toolchains": [
             "ARM",
-            "GCC_ARM",
-            "IAR"
+            "GCC_ARM"
         ],
         "extra_labels_add": [
             "Freescale",
@@ -1104,8 +1098,7 @@
         "core": "Cortex-M4F",
         "supported_toolchains": [
             "ARM",
-            "GCC_ARM",
-            "IAR"
+            "GCC_ARM"
         ],
         "extra_labels": [
             "Freescale",