diff --git a/data/built-ins.json b/data/built-ins.json
index 3c91bbf0..b0ecacbd 100644
--- a/data/built-ins.json
+++ b/data/built-ins.json
@@ -805,6 +805,7 @@
     "firefox": 47,
     "safari": 10.1,
     "node": 7,
+    "ios": 10.3,
     "opera": 41,
     "electron": 1.5
   },
@@ -814,6 +815,7 @@
     "firefox": 47,
     "safari": 10.1,
     "node": 7,
+    "ios": 10.3,
     "opera": 41,
     "electron": 1.5
   },
@@ -823,6 +825,7 @@
     "firefox": 50,
     "safari": 10.1,
     "node": 7,
+    "ios": 10.3,
     "opera": 41,
     "electron": 1.5
   },
diff --git a/data/plugins.json b/data/plugins.json
index caa81ba2..52bb1c27 100644
--- a/data/plugins.json
+++ b/data/plugins.json
@@ -206,6 +206,7 @@
     "firefox": 52,
     "safari": 10.1,
     "node": 7,
+    "ios": 10.3,
     "opera": 39,
     "electron": 1.3
   },
@@ -215,6 +216,7 @@
     "firefox": 52,
     "safari": 10.1,
     "node": 7.6,
+    "ios": 10.3,
     "opera": 42,
     "electron": 1.6
   },
diff --git a/package.json b/package.json
index 0ee7f2ac..de238988 100644
--- a/package.json
+++ b/package.json
@@ -63,7 +63,7 @@
     "babel-register": "^6.23.0",
     "chai": "^3.5.0",
     "codecov": "^1.0.1",
-    "compat-table": "kangax/compat-table#861954b6e13d3eaa1ba9ef1a016906c0fc1072db",
+    "compat-table": "kangax/compat-table#f49f1b23ad35e61819c388bc1876d936bc6ad8bf",
     "eslint": "^3.17.1",
     "eslint-config-babel": "^6.0.0",
     "eslint-plugin-flowtype": "^2.29.1",
diff --git a/scripts/build-data.js b/scripts/build-data.js
index faba55ef..2a1a2628 100644
--- a/scripts/build-data.js
+++ b/scripts/build-data.js
@@ -145,6 +145,7 @@ const envMap = {
   android50: "android5.0",
   android51: "android5.1",
   ios51: "ios5.1",
+  ios10_3: "ios10.3",
 };
 
 const compatibilityTests = flattenDeep([
diff --git a/yarn.lock b/yarn.lock
index 770e5af7..b8ca55cd 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1269,9 +1269,9 @@ commoner@^0.10.1:
     q "^1.1.2"
     recast "^0.11.17"
 
-compat-table@kangax/compat-table#861954b6e13d3eaa1ba9ef1a016906c0fc1072db:
+compat-table@kangax/compat-table#f49f1b23ad35e61819c388bc1876d936bc6ad8bf:
   version "0.0.0"
-  resolved "https://codeload.github.com/kangax/compat-table/tar.gz/861954b6e13d3eaa1ba9ef1a016906c0fc1072db"
+  resolved "https://codeload.github.com/kangax/compat-table/tar.gz/f49f1b23ad35e61819c388bc1876d936bc6ad8bf"
   dependencies:
     babel-core latest
     babel-polyfill latest