diff --git a/package-lock.json b/package-lock.json
index 974370f..edad58b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "sift",
-  "version": "0.1.0",
+  "version": "0.1.1",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -2336,7 +2336,7 @@
     "geojsonhint": {
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/geojsonhint/-/geojsonhint-1.2.1.tgz",
-      "integrity": "sha1-U0gnDsrDxCi0Vc/tqyRdQKWun8c=",
+      "integrity": "sha512-jR1pLHEjzO+6jNs4hAg3ZM1raFQZo8Lu9vyUpKCWZP6g6QqHSfk1Y9eWLURGqC7Vn5r3eROfcnfJ7vwPDKTgsg==",
       "requires": {
         "chalk": "^1.1.0",
         "concat-stream": "~1.4.4",
@@ -2348,7 +2348,7 @@
         "minimist": {
           "version": "1.1.1",
           "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.1.1.tgz",
-          "integrity": "sha1-G8K8cWWM3KVxJHVoQ2NhWwtPaVs="
+          "integrity": "sha512-FzcUe2HULkO6NxOnADCRJos39lkw3Uy+i8hpVfHDrBK0fdbTLkeo6LveAY6dEJwoSxwB3z6MyQSOJDRZ6w9kvA=="
         }
       }
     },
@@ -2553,9 +2553,9 @@
           },
           "dependencies": {
             "graceful-fs": {
-              "version": "4.2.4",
-              "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.4.tgz",
-              "integrity": "sha512-WjKPNJF79dtJAVniUlGGWHYGz2jWxT6VhN/4m1NdkbZ2nOsEF+cI1Edgql5zCRhs/VsQYRvrXctxktVXZUkixw==",
+              "version": "1.2.3",
+              "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-1.2.3.tgz",
+              "integrity": "sha512-iiTUZ5vZ+2ZV+h71XAgwCSu6+NAizhFU3Yw8aC/hH5SQ3SnISqEqAek40imAFGtDcwJKNhXvSY+hzIolnLwcdQ==",
               "dev": true
             }
           }
@@ -2598,6 +2598,15 @@
         "sparkles": "^1.0.0"
       }
     },
+    "graceful-fs": {
+      "version": "3.0.12",
+      "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-3.0.12.tgz",
+      "integrity": "sha512-J55gaCS4iTTJfTXIxSVw3EMQckcqkpdRv3IR7gu6sq0+tbC363Zx6KH/SEwXASK9JRbhyZmVjJEVJIOxYsB3Qg==",
+      "dev": true,
+      "requires": {
+        "natives": "^1.1.3"
+      }
+    },
     "graceful-readlink": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/graceful-readlink/-/graceful-readlink-1.0.1.tgz",
@@ -4006,9 +4015,9 @@
       }
     },
     "minimist": {
-      "version": "1.2.5",
-      "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.5.tgz",
-      "integrity": "sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw=="
+      "version": "1.2.8",
+      "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.8.tgz",
+      "integrity": "sha512-2yyAR8qBkN3YuheJanUpWC5U3bb5osDywNB8RzDVlDwDHbocAJveqqj1u8+SVD7jkWT4yvsHCpWqqWqAxb0zCA=="
     },
     "mixin-deep": {
       "version": "1.3.2",
@@ -4119,6 +4128,12 @@
         "to-regex": "^3.0.1"
       }
     },
+    "natives": {
+      "version": "1.1.6",
+      "resolved": "https://registry.npmjs.org/natives/-/natives-1.1.6.tgz",
+      "integrity": "sha512-6+TDFewD4yxY14ptjKaS63GVdtKiES1pTPyxn9Jb0rBqPMZ7VcCiooEhPNsr+mqHtMGxa/5c/HhcC4uPEUw/nA==",
+      "dev": true
+    },
     "nomnom": {
       "version": "1.8.1",
       "resolved": "https://registry.npmjs.org/nomnom/-/nomnom-1.8.1.tgz",
@@ -6376,12 +6391,6 @@
           "integrity": "sha1-uI+UqCzzi4eR1YBG6kAprYjKmdE=",
           "dev": true
         },
-        "graceful-fs": {
-          "version": "4.2.4",
-          "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.4.tgz",
-          "integrity": "sha512-WjKPNJF79dtJAVniUlGGWHYGz2jWxT6VhN/4m1NdkbZ2nOsEF+cI1Edgql5zCRhs/VsQYRvrXctxktVXZUkixw==",
-          "dev": true
-        },
         "readable-stream": {
           "version": "1.0.34",
           "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-1.0.34.tgz",
@@ -6936,18 +6945,18 @@
       }
     },
     "wellknown": {
-      "version": "0.3.4",
-      "resolved": "https://registry.npmjs.org/wellknown/-/wellknown-0.3.4.tgz",
-      "integrity": "sha1-TZSU8AI5CZXZ+pu1xMS6m8DX02Q=",
+      "version": "0.5.0",
+      "resolved": "https://registry.npmjs.org/wellknown/-/wellknown-0.5.0.tgz",
+      "integrity": "sha512-za5vTLuPF9nmrVOovYQwNEWE/PwJCM+yHMAj4xN1WWUvtq9OElsvKiPL0CR9rO8xhrYqL7NpI7IknqR8r6eYOg==",
       "requires": {
         "concat-stream": "~1.5.0",
-        "minimist": "~1.1.2"
+        "minimist": "~1.2.0"
       },
       "dependencies": {
         "concat-stream": {
           "version": "1.5.2",
           "resolved": "https://registry.npmjs.org/concat-stream/-/concat-stream-1.5.2.tgz",
-          "integrity": "sha1-cIl4Yk2FavQaWnQd790mHadSwmY=",
+          "integrity": "sha512-H6xsIBfQ94aESBG8jGHXQ7i5AEpy5ZeVaLDOisDICiTCKpqEfr34/KmTrspKQNoLKNu9gTkovlpQcUi630AKiQ==",
           "requires": {
             "inherits": "~2.0.1",
             "readable-stream": "~2.0.0",
@@ -6957,22 +6966,17 @@
         "isarray": {
           "version": "1.0.0",
           "resolved": "https://registry.npmjs.org/isarray/-/isarray-1.0.0.tgz",
-          "integrity": "sha1-u5NdSFgsuhaMBoNJV6VKPgcSTxE="
-        },
-        "minimist": {
-          "version": "1.1.3",
-          "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.1.3.tgz",
-          "integrity": "sha1-O+39kaktOQFvz6ocaB6Pqhoe/ag="
+          "integrity": "sha512-VLghIWNM6ELQzo7zwmcg0NmTVyWKYjvIeM83yjp0wRDTmUnrM678fQbcKBo6n2CJEF0szoG//ytg+TKla89ALQ=="
         },
         "process-nextick-args": {
           "version": "1.0.7",
           "resolved": "https://registry.npmjs.org/process-nextick-args/-/process-nextick-args-1.0.7.tgz",
-          "integrity": "sha1-FQ4gt1ZZCtP5EJPyWk8q2L/zC6M="
+          "integrity": "sha512-yN0WQmuCX63LP/TMvAg31nvT6m4vDqJEiiv2CAZqWOGNWutc9DfDk1NPYYmKUFmaVM2UwDowH4u5AHWYP/jxKw=="
         },
         "readable-stream": {
           "version": "2.0.6",
           "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.0.6.tgz",
-          "integrity": "sha1-j5A0HmilPMySh4jaz80Rs265t44=",
+          "integrity": "sha512-TXcFfb63BQe1+ySzsHZI/5v1aJPCShfqvWJ64ayNImXMsN1Cd0YGk/wm8KB7/OeessgPc9QvS9Zou8QTkFzsLw==",
           "requires": {
             "core-util-is": "~1.0.0",
             "inherits": "~2.0.1",
diff --git a/package.json b/package.json
index c4cad06..1531dfb 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
     "turf-convex": "^1.0.1",
     "turf-explode": "^1.0.1",
     "underscore": "^1.8.3",
-    "wellknown": "^0.3.2",
+    "wellknown": "^0.5.0",
     "xhr": "^2.0.3"
   },
   "devDependencies": {