diff --git a/npm-shrinkwrap.clean.json b/npm-shrinkwrap.clean.json
index 3e0e30e8e0..594b59ccaf 100644
--- a/npm-shrinkwrap.clean.json
+++ b/npm-shrinkwrap.clean.json
@@ -6031,8 +6031,7 @@
       }
     },
     "gulp-typescript": {
-      "version": "2.5.0",
-      "resolved": "git://github.com/ivogabe/gulp-typescript.git#3422fbff06532ccc57368f3b4c8801de8f72ef27",
+      "version": "2.6.0",
       "dependencies": {
         "gulp-util": {
           "version": "3.0.4",
@@ -9510,7 +9509,7 @@
     },
     "typescript": {
       "version": "1.5.0",
-      "resolved": "git://github.com/mhegazy/TypeScript#deafa1186e7ff1c6b4542b3cdc7dd7ae83de700c"
+      "resolved": "git://github.com/alexeagle/TypeScript#5d006dcd185eec3fa919c8670fbaa451d7912f66"
     },
     "vinyl": {
       "version": "0.4.6",
diff --git a/npm-shrinkwrap.json b/npm-shrinkwrap.json
index a5bf4070f8..d826aec20e 100644
--- a/npm-shrinkwrap.json
+++ b/npm-shrinkwrap.json
@@ -9320,9 +9320,9 @@
       }
     },
     "gulp-typescript": {
-      "version": "2.5.0",
-      "from": "gulp-typescript@git://github.com/ivogabe/gulp-typescript.git#3422fbff06532ccc57368f3b4c8801de8f72ef27",
-      "resolved": "git://github.com/ivogabe/gulp-typescript.git#3422fbff06532ccc57368f3b4c8801de8f72ef27",
+      "version": "2.6.0",
+      "from": "https://registry.npmjs.org/gulp-typescript/-/gulp-typescript-2.6.0.tgz",
+      "resolved": "https://registry.npmjs.org/gulp-typescript/-/gulp-typescript-2.6.0.tgz",
       "dependencies": {
         "gulp-util": {
           "version": "3.0.4",
@@ -14694,8 +14694,8 @@
     },
     "typescript": {
       "version": "1.5.0",
-      "from": "git://github.com/mhegazy/TypeScript#v1.5-beta",
-      "resolved": "git://github.com/mhegazy/TypeScript#deafa1186e7ff1c6b4542b3cdc7dd7ae83de700c"
+      "from": "git://github.com/alexeagle/TypeScript#error_is_class",
+      "resolved": "git://github.com/alexeagle/TypeScript#5d006dcd185eec3fa919c8670fbaa451d7912f66"
     },
     "vinyl": {
       "version": "0.4.6",
diff --git a/package.json b/package.json
index ca1d38c9bb..78e31afaff 100644
--- a/package.json
+++ b/package.json
@@ -73,7 +73,7 @@
     "gulp-sourcemaps": "1.3.*",
     "gulp-template": "^3.0.0",
     "gulp-traceur": "0.17.*",
-    "gulp-typescript": "ivogabe/gulp-typescript#3422fbff06532ccc57368f3b4c8801de8f72ef27",
+    "gulp-typescript": "^2.6.0",
     "gulp-webserver": "^0.8.7",
     "html2jade": "^0.8.3",
     "indent-string": "^1.2.1",
@@ -110,7 +110,7 @@
     "through2": "^0.6.1",
     "ts2dart": "^0.4.2",
     "tsd": "^0.5.7",
-    "typescript": "mhegazy/TypeScript#v1.5-beta",
+    "typescript": "alexeagle/TypeScript#error_is_class",
     "vinyl": "^0.4.6",
     "walk-sync": "^0.1.3",
     "xtend": "^4.0.0",