diff --git a/appsscript.json b/appsscript.json
index f163a67..cdbf60a 100644
--- a/appsscript.json
+++ b/appsscript.json
@@ -1,15 +1,8 @@
 {
   "timeZone": "Europe/London",
   "exceptionLogging": "STACKDRIVER",
-  "dependencies": {
-    "libraries": [
-      {
-        "userSymbol": "cUseful",
-        "libraryId": "1EbLSESpiGkI3PYmJqWh3-rmLkYKAtCNPi1L2YCtMgo2Ut8xMThfJ41Ex",
-        "version": "131"
-      }
-    ]
-  },
+  "runtimeVersion": "V8",
+  "dependencies": {},
   "webapp": {
     "executeAs": "USER_DEPLOYING",
     "access": "MYSELF"