Fix snekfetch

package.json

@@ -1,6 +1,6 @@
 {
   "name": "xiaobot",
-  "version": "29.1.5",
+  "version": "29.1.6",
   "description": "Your personal server companion.",
   "main": "Shard.js",
   "scripts": {
@@ -36,10 +36,10 @@
     "discord.js": "github:hydrabolt/discord.js",
     "discord.js-commando": "github:gawdl3y/discord.js-commando",
     "erlpack": "github:hammerandchisel/erlpack",
-    "mathjs": "^3.15.0",
+    "mathjs": "^3.16.0",
     "moment": "^2.18.1",
     "moment-duration-format": "^1.3.0",
-    "snekfetch": "^3.2.4",
+    "snekfetch": "3.2.4",
     "tsubaki": "^1.2.0",
     "uws": "^8.14.1",
     "xml2js": "^0.4.17",