diff --git a/package.json b/package.json
index 685bda43..b7e8a1ce 100644
--- a/package.json
+++ b/package.json
@@ -42,7 +42,7 @@
     "sinon": "4.5.0",
     "source-map-support": "0.5.9",
     "tslint": "5.10.0",
-    "typescript": "2.6.2"
+    "typescript": "3.0.3"
   },
   "nyc": {
     "exclude": ["**/tests"]
diff --git a/packages/apollo-fetch-upload/package.json b/packages/apollo-fetch-upload/package.json
index e605807f..94a5934a 100644
--- a/packages/apollo-fetch-upload/package.json
+++ b/packages/apollo-fetch-upload/package.json
@@ -37,6 +37,6 @@
     "ava": "0.25.0",
     "rimraf": "2.6.2",
     "tslint": "5.10.0",
-    "typescript": "2.6.2"
+    "typescript": "3.0.3"
   }
 }
diff --git a/packages/apollo-fetch/package.json b/packages/apollo-fetch/package.json
index 208f8766..c34a3b9d 100644
--- a/packages/apollo-fetch/package.json
+++ b/packages/apollo-fetch/package.json
@@ -69,7 +69,7 @@
     "sinon": "4.5.0",
     "source-map-support": "0.5.9",
     "tslint": "5.10.0",
-    "typescript": "2.6.2"
+    "typescript": "3.0.3"
   },
   "nyc": {
     "exclude": ["tests"]