diff --git a/package-lock.json b/package-lock.json
index 4ad493b..84bc6e8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -274,23 +274,18 @@
       "integrity": "sha1-jNF0XItPiinIyuw5JHaSG6GV9WA="
     },
     "fs-tools": {
-      "version": "0.2.11",
-      "resolved": "https://registry.npmjs.org/fs-tools/-/fs-tools-0.2.11.tgz",
-      "integrity": "sha1-ZKYzkRn42mh75NH9vaN+4PiOZEw=",
+      "version": "0.5.0",
+      "resolved": "https://registry.npmjs.org/fs-tools/-/fs-tools-0.5.0.tgz",
+      "integrity": "sha512-iJG+dKoTlWevEBvsZYkq7Fy1XJVYHMObel+MIKOf+3HbiENQG0JH5bgTlzJYsrdwZvft1vE/yl/P/T4wngAv8A==",
       "requires": {
         "async": "~ 0.2.9",
-        "lodash": "~ 2.4.1"
+        "lodash": "^4.17.10"
       },
       "dependencies": {
         "async": {
           "version": "0.2.10",
           "resolved": "https://registry.npmjs.org/async/-/async-0.2.10.tgz",
           "integrity": "sha1-trvgsGdLnXGXCMo43owjfLUmw9E="
-        },
-        "lodash": {
-          "version": "2.4.2",
-          "resolved": "https://registry.npmjs.org/lodash/-/lodash-2.4.2.tgz",
-          "integrity": "sha1-+t2DS5aDBz2hebPq5tnA0VBT9z4="
         }
       }
     },
@@ -447,9 +442,9 @@
       "optional": true
     },
     "lodash": {
-      "version": "4.17.5",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.5.tgz",
-      "integrity": "sha512-svL3uiZf1RwhH+cWrfZn3A4+U58wbP0tGVTLQPbjplZxZ8ROD9VLuNgsRniTlLe7OlSqR79RUehXgpBW/s0IQw=="
+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
     },
     "lodash._basecallback": {
       "version": "3.3.1",
@@ -741,38 +736,37 @@
       }
     },
     "metalsmith-copy": {
-      "version": "0.2.1",
-      "resolved": "https://registry.npmjs.org/metalsmith-copy/-/metalsmith-copy-0.2.1.tgz",
-      "integrity": "sha1-FzOtxlYICZNNKJvKXNTZ+qs1bgI=",
+      "version": "0.4.1",
+      "resolved": "https://registry.npmjs.org/metalsmith-copy/-/metalsmith-copy-0.4.1.tgz",
+      "integrity": "sha512-9Xs+gd/fH5G+6OEctPVPJa0kfZgB/iWzcnLW9TBByIC4uVIpV33c0h9/oJTQfHBNY0i0tf41s7tdaMPYsr1gfw==",
       "requires": {
-        "debug": "^0.8.1",
-        "lodash": "^2.4.1",
-        "minimatch": "^0.2.14"
+        "debug": "^3.1.0",
+        "lodash": "^4.17.10",
+        "minimatch": "^3.0.2"
       },
       "dependencies": {
-        "lodash": {
-          "version": "2.4.2",
-          "resolved": "https://registry.npmjs.org/lodash/-/lodash-2.4.2.tgz",
-          "integrity": "sha1-+t2DS5aDBz2hebPq5tnA0VBT9z4="
-        },
-        "minimatch": {
-          "version": "0.2.14",
-          "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-0.2.14.tgz",
-          "integrity": "sha1-x054BXT2PG+aCQ6Q775u9TpqdWo=",
+        "debug": {
+          "version": "3.2.7",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-3.2.7.tgz",
+          "integrity": "sha512-CFjzYYAi4ThfiQvizrFQevTTXHtnCqWfe7x1AhgEscTz6ZbLbfoLRLPugTQyBth6f8ZERVUSyWHFD/7Wu4t1XQ==",
           "requires": {
-            "lru-cache": "2",
-            "sigmund": "~1.0.0"
+            "ms": "^2.1.1"
           }
+        },
+        "ms": {
+          "version": "2.1.3",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
+          "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA=="
         }
       }
     },
     "metalsmith-discover-partials": {
-      "version": "0.1.0",
-      "resolved": "https://registry.npmjs.org/metalsmith-discover-partials/-/metalsmith-discover-partials-0.1.0.tgz",
-      "integrity": "sha1-+PI5O8vV4XKspzFc3BFgHhOU+yM=",
+      "version": "0.1.2",
+      "resolved": "https://registry.npmjs.org/metalsmith-discover-partials/-/metalsmith-discover-partials-0.1.2.tgz",
+      "integrity": "sha512-rjVOCSnoXJyEQand85o8l8Z9Yevbyis23q+gCA5Q6w5SG2L+H/jMQYGokpj3a5cOl0Fkl+MaXZSHJ9elpKYNFg==",
       "requires": {
         "defaults": "^1.0.3",
-        "fs-tools": "^0.2.11",
+        "fs-tools": "^0.5.0",
         "handlebars": "*"
       }
     },
diff --git a/package.json b/package.json
index 1271208..97bb0a7 100644
--- a/package.json
+++ b/package.json
@@ -19,12 +19,12 @@
     "handlebars": "^4.0.11",
     "highlighter": "0.0.3",
     "jsonfile": "^2.3.1",
-    "lodash": "^4.17.5",
+    "lodash": "^4.17.21",
     "metalsmith": "^2.1.0",
     "metalsmith-assets": "^0.1.0",
     "metalsmith-collections": "^0.9.0",
-    "metalsmith-copy": "^0.2.1",
-    "metalsmith-discover-partials": "^0.1.0",
+    "metalsmith-copy": "^0.4.1",
+    "metalsmith-discover-partials": "^0.1.2",
     "metalsmith-in-place": "^1.4.4",
     "metalsmith-layouts": "1.5.4",
     "metalsmith-markdown": "^0.2.2",