diff --git a/package-lock.json b/package-lock.json
index 1f9113c..7c08be1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -688,14 +688,38 @@
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-      "resolved": "https://registry.npmjs.org/handlebars/-/handlebars-4.0.11.tgz",
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-      "requires": {
-        "async": "^1.4.0",
-        "optimist": "^0.6.1",
-        "source-map": "^0.4.4",
-        "uglify-js": "^2.6"
+      "version": "4.7.7",
+      "resolved": "https://registry.npmjs.org/handlebars/-/handlebars-4.7.7.tgz",
+      "integrity": "sha512-aAcXm5OAfE/8IXkcZvCepKU3VzW1/39Fb5ZuqMtgI/hT8X2YgoMvBY5dLhq/cpOvw7Lk1nK/UF71aLG/ZnVYRA==",
+      "requires": {
+        "minimist": "^1.2.5",
+        "neo-async": "^2.6.0",
+        "source-map": "^0.6.1",
+        "uglify-js": "^3.1.4",
+        "wordwrap": "^1.0.0"
+      },
+      "dependencies": {
+        "minimist": {
+          "version": "1.2.5",
+          "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.5.tgz",
+          "integrity": "sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw=="
+        },
+        "source-map": {
+          "version": "0.6.1",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
+          "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g=="
+        },
+        "uglify-js": {
+          "version": "3.13.5",
+          "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.13.5.tgz",
+          "integrity": "sha512-xtB8yEqIkn7zmOyS2zUNBsYCBRhDkvlNxMMY2smuJ/qA8NCHeQvKCF3i9Z4k8FJH4+PJvZRtMrPynfZ75+CSZw==",
+          "optional": true
+        },
+        "wordwrap": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-1.0.0.tgz",
+          "integrity": "sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus="
+        }
       }
     },
     "has": {
@@ -1467,28 +1491,6 @@
         }
       }
     },
-    "metalsmith-markdown-taxonomy": {
-      "version": "0.0.2",
-      "resolved": "https://registry.npmjs.org/metalsmith-markdown-taxonomy/-/metalsmith-markdown-taxonomy-0.0.2.tgz",
-      "integrity": "sha512-N+zbq76trOqwO4lhqo18FlUN9DhzDv1vGN6Tj/mOmWTkT3/4MM+Q0pil/SPrUIySDSJpSctc/hom8eLTNJcSeQ==",
-      "requires": {
-        "async": "^2.4.1",
-        "debug": "^2.2.0",
-        "lodash": "^4.17.4",
-        "marked": "^0.3.6",
-        "minimatch": "^3.0.0"
-      },
-      "dependencies": {
-        "async": {
-          "version": "2.6.0",
-          "resolved": "https://registry.npmjs.org/async/-/async-2.6.0.tgz",
-          "integrity": "sha512-xAfGg1/NTLBBKlHFmnd7PlmUW9KhVQIUuSrYem9xzFUZy13ScvtyGGejaae9iAVRiRq9+Cx7DPFaAAhCpyxyPw==",
-          "requires": {
-            "lodash": "^4.14.0"
-          }
-        }
-      }
-    },
     "metalsmith-matters": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/metalsmith-matters/-/metalsmith-matters-1.2.0.tgz",
@@ -1505,18 +1507,6 @@
       "resolved": "https://registry.npmjs.org/metalsmith-metacopy/-/metalsmith-metacopy-0.2.0.tgz",
       "integrity": "sha1-Cl9sK0NNnMgmoUWn8BX3tmT0pfM="
     },
-    "metalsmith-migrate-safetag": {
-      "version": "0.2.0",
-      "resolved": "https://registry.npmjs.org/metalsmith-migrate-safetag/-/metalsmith-migrate-safetag-0.2.0.tgz",
-      "integrity": "sha512-/qGKFehHya7amnFlXDB6R2xoBRbGJIYN0+1pStfb2fUgvxnUteH1gqwFnfF9i9uclF3yOtaUHNEMxWKcA6Q3fA==",
-      "requires": {
-        "debug": "^2.2.0",
-        "lodash": "^4.17.4",
-        "minimatch": "^3.0.0",
-        "source-map-support": "^0.4.15",
-        "trim-newlines": "^2.0.0"
-      }
-    },
     "metalsmith-packages": {
       "version": "0.1.0",
       "resolved": "https://registry.npmjs.org/metalsmith-packages/-/metalsmith-packages-0.1.0.tgz",
@@ -1545,7 +1535,7 @@
         "async": "^2.0.0-rc.2",
         "debug": "^2.1.0",
         "multimatch": "^2.1.0",
-        "pdc": "github:cherbst/node-pdc#720ad811afd5239c27b3bbe9b4cd8677b0cde1df",
+        "pdc": "pdc@github:cherbst/node-pdc#720ad811afd5239c27b3bbe9b4cd8677b0cde1df",
         "system-install": "^1.0.0",
         "which": "^1.0.8"
       },
@@ -1668,7 +1658,7 @@
       "requires": {
         "async": "^2.4.1",
         "debug": "^2.2.0",
-        "hercule": "github:contentascode/hercule#2df09afb83b52c5cf8edc241a85d40a7ef0a546f",
+        "hercule": "hercule@github:contentascode/hercule#2df09afb83b52c5cf8edc241a85d40a7ef0a546f",
         "json-pointer": "^0.6.0",
         "multimatch": "^2.1.0",
         "pegjs": "^0.10.0"
@@ -1819,6 +1809,11 @@
         "minimatch": "^3.0.0"
       }
     },
+    "neo-async": {
+      "version": "2.6.2",
+      "resolved": "https://registry.npmjs.org/neo-async/-/neo-async-2.6.2.tgz",
+      "integrity": "sha512-Yd3UES5mWCSqR+qNT93S3UoYUkqAZ9lLg8a7g9rimsWmYGK8cVToA4/sF3RrshdyV3sAGMXVUmpMYOw+dLpOuw=="
+    },
     "node-static": {
       "version": "0.7.10",
       "resolved": "https://registry.npmjs.org/node-static/-/node-static-0.7.10.tgz",
@@ -3135,11 +3130,6 @@
       "resolved": "https://registry.npmjs.org/trim/-/trim-0.0.1.tgz",
       "integrity": "sha1-WFhUf2spB1fulczMZm+1AITEYN0="
     },
-    "trim-newlines": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/trim-newlines/-/trim-newlines-2.0.0.tgz",
-      "integrity": "sha1-tAPQuRvlDDMd/EuC7s6yLD3hbSA="
-    },
     "trim-trailing-lines": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/trim-trailing-lines/-/trim-trailing-lines-1.1.0.tgz",
diff --git a/package.json b/package.json
index de39a9c..82b276d 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
   "license": "CC-BY-SA-3.0",
   "dependencies": {
     "filter.js": "github:perfectwebteam/filter.js",
-    "handlebars": "^4.0.10",
+    "handlebars": "^4.7.7",
     "lodash": "^4.17.4",
     "metalsmith-assets-copy": "0.0.2",
     "metalsmith-assets-improved": "github:contentascode/metalsmith-assets-improved#release",