diff --git a/package-lock.json b/package-lock.json
index cc3f458..2f96020 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -57,21 +57,6 @@
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-          "version": "0.5.7",
-          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.5.7.tgz",
-          "integrity": "sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w=",
-          "optional": true
-        }
-      }
-    },
-    "uglify-to-browserify": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/uglify-to-browserify/-/uglify-to-browserify-1.0.2.tgz",
-      "integrity": "sha1-bgkk1r2mta/jSeOabWMoUKD4grc=",
+      "version": "3.15.1",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.15.1.tgz",
+      "integrity": "sha512-FAGKF12fWdkpvNJZENacOH0e/83eG6JyVQyanIJaBXCN1J11TUQv1T1/z8S+Z0CG0ZPk1nPcreF/c7lrTd0TEQ==",
       "optional": true
     },
     "uid-safe": {
@@ -2096,16 +1931,10 @@
         "isexe": "^2.0.0"
       }
     },
-    "window-size": {
-      "version": "0.1.0",
-      "resolved": "https://registry.npmjs.org/window-size/-/window-size-0.1.0.tgz",
-      "integrity": "sha1-VDjNLqk7IC76Ohn+iIeu58lPnJ0=",
-      "optional": true
-    },
     "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",
@@ -2120,18 +1949,6 @@
       "requires": {
         "mkdirp": "^0.5.1"
       }
-    },
-    "yargs": {
-      "version": "3.10.0",
-      "resolved": "https://registry.npmjs.org/yargs/-/yargs-3.10.0.tgz",
-      "integrity": "sha1-9+572FfdfB0tOMDnTvvWgdFDH9E=",
-      "optional": true,
-      "requires": {
-        "camelcase": "^1.0.2",
-        "cliui": "^2.1.0",
-        "decamelize": "^1.0.0",
-        "window-size": "0.1.0"
-      }
     }
   }
 }
diff --git a/package.json b/package.json
index efcbe56..79c1e3e 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,7 @@
   "dependencies": {
     "body-parser": "^1.18.3",
     "express": "^4.16.3",
-    "express-handlebars": "^3.0.0",
+    "express-handlebars": "^5.3.1",
     "express-session": "^1.15.6"
   },
   "devDependencies": {