diff --git a/emsdk_manifest.json b/emsdk_manifest.json
index 552581a..14e4a38 100644
--- a/emsdk_manifest.json
+++ b/emsdk_manifest.json
@@ -82,6 +82,15 @@
     "activated_path": "%installation_dir%",
     "activated_env": "EMSCRIPTEN=%installation_dir%"
   },
+  {
+    "id": "emscripten",
+    "version": "1.7.1",
+    "windows_url": "emscripten-1.7.1.zip",
+    "unix_url": "emscripten-1.7.1.tar.gz",
+    "activated_cfg": "EMSCRIPTEN_ROOT='%installation_dir%'",
+    "activated_path": "%installation_dir%",
+    "activated_env": "EMSCRIPTEN=%installation_dir%"
+  },
   {
     "id": "emscripten",
     "version": "incoming",
@@ -131,6 +140,12 @@
     "uses": ["clang-3.2-32bit", "node-0.10.17-32bit", "python-2.7.5.1-32bit", "emscripten-1.5.6"],
     "os": "win"
   },
+  {
+    "version": "1.7.1",
+    "bitness": 32,
+    "uses": ["clang-3.2-32bit", "node-0.10.17-32bit", "python-2.7.5.1-32bit", "emscripten-1.7.1"],
+    "os": "win"
+  },
   {
     "version": "incoming",
     "bitness": 64,
@@ -152,6 +167,18 @@
     "bitness": 64,
     "uses": ["clang-3.2-64bit", "node-0.10.18-64bit", "emscripten-1.5.6"],
     "os": "osx"
+  },
+  {
+    "version": "1.7.1",
+    "bitness": 64,
+    "uses": ["clang-3.2-64bit", "node-0.10.17-64bit", "python-2.7.5-64bit", "emscripten-1.7.1"],
+    "os": "win"
+  },
+  {
+    "version": "1.7.1",
+    "bitness": 64,
+    "uses": ["clang-3.2-64bit", "node-0.10.18-64bit", "emscripten-1.7.1"],
+    "os": "osx"
   }
   ]
 }