diff --git a/package-lock.json b/package-lock.json
index 75fdcb7..0b94677 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1596,18 +1596,6 @@
       "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz",
       "integrity": "sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A=="
     },
-    "lodash.assign": {
-      "version": "4.2.0",
-      "resolved": "https://registry.npmjs.org/lodash.assign/-/lodash.assign-4.2.0.tgz",
-      "integrity": "sha1-DZnzzNem0mHRm9rrkkUAXShYCOc=",
-      "dev": true
-    },
-    "lodash.clonedeep": {
-      "version": "4.5.0",
-      "resolved": "https://registry.npmjs.org/lodash.clonedeep/-/lodash.clonedeep-4.5.0.tgz",
-      "integrity": "sha1-4j8/nE+Pvd6HJSnBBxhXoIblzO8=",
-      "dev": true
-    },
     "lodash.omit": {
       "version": "4.5.0",
       "resolved": "https://registry.npmjs.org/lodash.omit/-/lodash.omit-4.5.0.tgz",
@@ -2090,9 +2078,9 @@
       }
     },
     "node-sass": {
-      "version": "3.13.1",
-      "resolved": "https://registry.npmjs.org/node-sass/-/node-sass-3.13.1.tgz",
-      "integrity": "sha1-ckD7v/I5YwS0IjUn7TAgWJwAT8I=",
+      "version": "4.13.1",
+      "resolved": "https://registry.npmjs.org/node-sass/-/node-sass-4.13.1.tgz",
+      "integrity": "sha512-TTWFx+ZhyDx1Biiez2nB0L3YrCZ/8oHagaDalbuBSlqXgUPsdkUSzJsVxeDO9LtPB49+Fh3WQl3slABo6AotNw==",
       "dev": true,
       "requires": {
         "async-foreach": "^0.1.3",
@@ -2102,15 +2090,16 @@
         "get-stdin": "^4.0.1",
         "glob": "^7.0.3",
         "in-publish": "^2.0.0",
-        "lodash.assign": "^4.2.0",
-        "lodash.clonedeep": "^4.3.2",
+        "lodash": "^4.17.15",
         "meow": "^3.7.0",
         "mkdirp": "^0.5.1",
-        "nan": "^2.3.2",
-        "node-gyp": "^3.3.1",
+        "nan": "^2.13.2",
+        "node-gyp": "^3.8.0",
         "npmlog": "^4.0.0",
-        "request": "^2.61.0",
-        "sass-graph": "^2.1.1"
+        "request": "^2.88.0",
+        "sass-graph": "^2.2.4",
+        "stdout-stream": "^1.4.0",
+        "true-case-path": "^1.0.2"
       }
     },
     "node-static": {
diff --git a/package.json b/package.json
index add5054..41bf8a5 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
     "metalsmith-layouts": "^1.4.4",
     "metalsmith-serve": "0.0.7",
     "metalsmith-watch": "^1.0.1",
-    "node-sass": "^3.4.2",
+    "node-sass": "^4.13.1",
     "nunjucks": "^2.3.0"
   },
   "dependencies": {