diff --git a/package-lock.json b/package-lock.json
index 225f60f3..4e95c11e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
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+          "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.14.2.tgz",
+          "integrity": "sha512-+TMNA9AFxUEGuC0z2mevogSnn9MXKb4fa7ngeRMJaaGv8vTwnIEkKi+QGvPt33HSnf8pRS+WGM0EbMtCJLKMBQ==",
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-            "encodeurl": "1.0.2",
-            "escape-html": "1.0.3",
-            "parseurl": "1.3.2",
-            "send": "0.16.2"
+            "encodeurl": "~1.0.2",
+            "escape-html": "~1.0.3",
+            "parseurl": "~1.3.3",
+            "send": "0.17.2"
           }
         },
-        "statuses": {
-          "version": "1.4.0",
-          "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.4.0.tgz",
-          "integrity": "sha512-zhSCtt8v2NDrRlPQpCNtw/heZLtfUDqxBM1udqikb/Hbk52LK4nQSwr10u77iopCW5LsyHpuXS0GnEc48mLeew=="
+        "setprototypeof": {
+          "version": "1.2.0",
+          "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.2.0.tgz",
+          "integrity": "sha512-E5LDX7Wrp85Kil5bhZv46j8jOeboKq5JMmYM3gVGdGH8xFpPWXUMsNrlODCrkoxMEeNi/XZIwuRvY4XNwYMJpw=="
+        },
+        "type-is": {
+          "version": "1.6.18",
+          "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.18.tgz",
+          "integrity": "sha512-TkRKr9sUTxEH8MdfuCSP7VizJyzRNMjj2J2do2Jr3Kym598JVdEksuzPQCnlFPW4ky9Q+iA+ma9BGm06XQBy8g==",
+          "requires": {
+            "media-typer": "0.3.0",
+            "mime-types": "~2.1.24"
+          }
         },
         "utils-merge": {
           "version": "1.0.1",
           "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz",
-          "integrity": "sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM="
+          "integrity": "sha512-pMZTvIkT1d+TFGvDOqodOclx0QWkkgi6Tdoa8gC8ffGAAqz9pzPTZWAybbsHHoED/ztMtkv/VoYTYyShUn81hA=="
         },
         "vary": {
           "version": "1.1.2",
           "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
-          "integrity": "sha1-IpnwLG3tMNSllhsLn3RSShj2NPw="
+          "integrity": "sha512-BNGbWLfd0eUPabhkXUVm0j8uuvREyTh5ovRa/dyow/BqAbZJyC+5fU+IzQOzmAKzYqYRAISoRhdQr3eIZ/PXqg=="
         }
       }
     },
@@ -4002,7 +4096,8 @@
         "ansi-regex": {
           "version": "2.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "aproba": {
           "version": "1.2.0",
@@ -4023,12 +4118,14 @@
         "balanced-match": {
           "version": "1.0.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "balanced-match": "1.0.0",
             "concat-map": "0.0.1"
@@ -4043,17 +4140,20 @@
         "code-point-at": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "concat-map": {
           "version": "0.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
@@ -4170,7 +4270,8 @@
         "inherits": {
           "version": "2.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.5",
@@ -4182,6 +4283,7 @@
           "version": "1.0.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "1.0.1"
           }
@@ -4196,6 +4298,7 @@
           "version": "3.0.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "1.1.11"
           }
@@ -4203,12 +4306,14 @@
         "minimist": {
           "version": "0.0.8",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "minipass": {
           "version": "2.2.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "5.1.1",
             "yallist": "3.0.2"
@@ -4227,6 +4332,7 @@
           "version": "0.5.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -4307,7 +4413,8 @@
         "number-is-nan": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -4319,6 +4426,7 @@
           "version": "1.4.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "wrappy": "1.0.2"
           }
@@ -4404,7 +4512,8 @@
         "safe-buffer": {
           "version": "5.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "safer-buffer": {
           "version": "2.1.2",
@@ -4440,6 +4549,7 @@
           "version": "1.0.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "code-point-at": "1.1.0",
             "is-fullwidth-code-point": "1.0.0",
@@ -4459,6 +4569,7 @@
           "version": "3.0.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "2.1.1"
           }
@@ -4502,12 +4613,14 @@
         "wrappy": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "yallist": {
           "version": "3.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         }
       }
     },
@@ -8884,7 +8997,8 @@
                 "console-control-strings": {
                   "version": "1.1.0",
                   "bundled": true,
-                  "dev": true
+                  "dev": true,
+                  "optional": true
                 },
                 "gauge": {
                   "version": "2.6.0",
@@ -8925,6 +9039,7 @@
                       "version": "1.0.2",
                       "bundled": true,
                       "dev": true,
+                      "optional": true,
                       "requires": {
                         "code-point-at": "1.0.0",
                         "is-fullwidth-code-point": "1.0.0",
@@ -8935,6 +9050,7 @@
                           "version": "1.0.0",
                           "bundled": true,
                           "dev": true,
+                          "optional": true,
                           "requires": {
                             "number-is-nan": "1.0.0"
                           },
@@ -8942,7 +9058,8 @@
                             "number-is-nan": {
                               "version": "1.0.0",
                               "bundled": true,
-                              "dev": true
+                              "dev": true,
+                              "optional": true
                             }
                           }
                         },
@@ -8950,6 +9067,7 @@
                           "version": "1.0.0",
                           "bundled": true,
                           "dev": true,
+                          "optional": true,
                           "requires": {
                             "number-is-nan": "1.0.0"
                           },
@@ -8957,7 +9075,8 @@
                             "number-is-nan": {
                               "version": "1.0.0",
                               "bundled": true,
-                              "dev": true
+                              "dev": true,
+                              "optional": true
                             }
                           }
                         }
@@ -11704,6 +11823,11 @@
         "ret": "0.1.15"
       }
     },
+    "safer-buffer": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/safer-buffer/-/safer-buffer-2.1.2.tgz",
+      "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg=="
+    },
     "sane-topojson": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/sane-topojson/-/sane-topojson-2.0.0.tgz",
@@ -13143,6 +13267,11 @@
         "repeat-string": "1.6.1"
       }
     },
+    "toidentifier": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.1.tgz",
+      "integrity": "sha512-o5sSPKEkg/DIQNmH43V0/uerLrpzVedkUh8tGNvaeXpfpuwjKenlSox/2O/BTlZUtEe+JG7s5YhEz608PlAHRA=="
+    },
     "topojson-client": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/topojson-client/-/topojson-client-2.1.0.tgz",
diff --git a/package.json b/package.json
index 12c1c253..c07eaf08 100644
--- a/package.json
+++ b/package.json
@@ -41,7 +41,7 @@
     "dagre": "0.8.2",
     "del": "^3.0.0",
     "expand-home-dir": "0.0.3",
-    "express": "4.16.3",
+    "express": "4.17.3",
     "golr-conf": "0.0.3",
     "gulp": "^3.8.11",
     "jquery": "3.3.1",