diff --git a/package-lock.json b/package-lock.json
index 8b02f78..910f2d0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -20,12 +20,6 @@
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@@ -3378,7 +3368,7 @@
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         "readable-stream": {
           "version": "2.2.2",
-          "resolved": "http://registry.npmjs.org/readable-stream/-/readable-stream-2.2.2.tgz",
+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.2.2.tgz",
           "integrity": "sha1-qeb+w8fdqF+LsbO6cChgRVb8gl4=",
           "dev": true,
           "optional": true,
@@ -3430,7 +3420,7 @@
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     "uglify-js": {
       "version": "2.7.5",
-      "resolved": "http://registry.npmjs.org/uglify-js/-/uglify-js-2.7.5.tgz",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-2.7.5.tgz",
       "integrity": "sha1-RhLAx7qu4rp8SH3kkErhIgefLKg=",
       "requires": {
         "async": "~0.2.6",
@@ -3441,7 +3431,7 @@
       "dependencies": {
         "source-map": {
           "version": "0.5.6",
-          "resolved": "http://registry.npmjs.org/source-map/-/source-map-0.5.6.tgz",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.5.6.tgz",
           "integrity": "sha1-dc449SvwczxafwwRjYEzSiu19BI="
         }
       }
@@ -3499,7 +3489,7 @@
     },
     "which": {
       "version": "1.2.12",
-      "resolved": "http://registry.npmjs.org/which/-/which-1.2.12.tgz",
+      "resolved": "https://registry.npmjs.org/which/-/which-1.2.12.tgz",
       "integrity": "sha1-3me15FAmnxlJCe8j7OTr5Bb6EZI=",
       "dev": true,
       "requires": {
@@ -3512,13 +3502,13 @@
       "integrity": "sha1-VDjNLqk7IC76Ohn+iIeu58lPnJ0="
     },
     "wordwrap": {
-      "version": "0.0.3",
-      "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-0.0.3.tgz",
-      "integrity": "sha1-o9XabNXAvAAI03I0u68b7WMFkQc="
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-1.0.0.tgz",
+      "integrity": "sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus="
     },
     "wrappy": {
       "version": "1.0.2",
-      "resolved": "http://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
       "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
       "dev": true
     },
@@ -3530,7 +3520,7 @@
     },
     "yallist": {
       "version": "2.0.0",
-      "resolved": "http://registry.npmjs.org/yallist/-/yallist-2.0.0.tgz",
+      "resolved": "https://registry.npmjs.org/yallist/-/yallist-2.0.0.tgz",
       "integrity": "sha1-MGxUODXwnuGkyyO3vOmrNByRzdQ=",
       "dev": true
     },
diff --git a/package.json b/package.json
index 0d4df32..08d3232 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
     "node": ">=0.4.7"
   },
   "dependencies": {
-    "handlebars": "^2.0.0",
+    "handlebars": "^4.7.7",
     "uglify-js": "^2.4.15",
     "watch": "^0.12.0",
     "lodash": ">=2.4.1"