diff --git a/src/content/content.js b/src/content/content.js
index 208d534..c207aac 100644
--- a/src/content/content.js
+++ b/src/content/content.js
@@ -89,10 +89,10 @@ Messages.addHandler({
     debug("COLLECT", list);
     return list;
   },
-  store(event) {
+  async store(event) {
     if (document.URL !== event.url) return;
-    let {data} = event;
-    let attr = sha256(data.concat(Math.random()));
+    const {data} = event;
+    const attr = await sha256(data.concat(Math.random()));
     document.documentElement.dataset[attr] = data;
     return attr;
   },
diff --git a/src/manifest.json b/src/manifest.json
index 2e19c08..ae91445 100644
--- a/src/manifest.json
+++ b/src/manifest.json
@@ -37,7 +37,7 @@
     "scripts": [
       "/nscl/lib/browser-polyfill.js",
       "/nscl/lib/punycode.js",
-      "/nscl/lib/sha256.js",
+      "/nscl/common/sha256.js",
       "/nscl/common/UA.js",
       "/nscl/common/uuid.js",
       "/nscl/common/SyncMessage.js",
@@ -89,7 +89,7 @@
       "all_frames": true,
       "js": [
         "/nscl/lib/browser-polyfill.js",
-        "/nscl/lib/sha256.js",
+        "/nscl/common/sha256.js",
         "/nscl/common/UA.js",
         "/nscl/common/uuid.js",
         "/nscl/common/log.js",
diff --git a/src/nscl b/src/nscl
index d85cc60..438bc9e 160000
--- a/src/nscl
+++ b/src/nscl
@@ -1 +1 @@
-Subproject commit d85cc60cf297ad0012260975f3c1633279ddd012
+Subproject commit 438bc9e3d2626521f8d669c32ddb0061fadcc4e5