diff --git a/package-lock.json b/package-lock.json
index 0d4b214..1ca5252 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -25,25 +25,24 @@
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+      "resolved": "https://registry.npmjs.org/@babel/core/-/core-7.12.10.tgz",
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-        "@babel/template": "^7.10.4",
-        "@babel/traverse": "^7.11.0",
-        "@babel/types": "^7.11.0",
+        "@babel/generator": "^7.12.10",
+        "@babel/helper-module-transforms": "^7.12.1",
+        "@babel/helpers": "^7.12.5",
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+        "@babel/template": "^7.12.7",
+        "@babel/traverse": "^7.12.10",
+        "@babel/types": "^7.12.10",
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         "debug": "^4.1.0",
         "gensync": "^1.0.0-beta.1",
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@@ -57,6 +56,73 @@
             "@babel/highlight": "^7.10.4"
           }
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+          "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.12.10.tgz",
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+          "dev": true,
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+        "@babel/helper-module-imports": {
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+          "resolved": "https://registry.npmjs.org/@babel/helper-module-imports/-/helper-module-imports-7.12.5.tgz",
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+          "dev": true,
+          "requires": {
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+        "@babel/helper-module-transforms": {
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+          "resolved": "https://registry.npmjs.org/@babel/helper-module-transforms/-/helper-module-transforms-7.12.1.tgz",
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+          "dev": true,
+          "requires": {
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+            "@babel/helper-replace-supers": "^7.12.1",
+            "@babel/helper-simple-access": "^7.12.1",
+            "@babel/helper-split-export-declaration": "^7.11.0",
+            "@babel/helper-validator-identifier": "^7.10.4",
+            "@babel/template": "^7.10.4",
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+            "@babel/types": "^7.12.1",
+            "lodash": "^4.17.19"
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+        "@babel/helper-replace-supers": {
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+          "resolved": "https://registry.npmjs.org/@babel/helper-replace-supers/-/helper-replace-supers-7.12.5.tgz",
+          "integrity": "sha512-5YILoed0ZyIpF4gKcpZitEnXEJ9UoDRki1Ey6xz46rxOzfNMAhVIJMoune1hmPVxh40LRv1+oafz7UsWX+vyWA==",
+          "dev": true,
+          "requires": {
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+            "@babel/helper-optimise-call-expression": "^7.10.4",
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+            "@babel/types": "^7.12.5"
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+        "@babel/helper-simple-access": {
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+          "resolved": "https://registry.npmjs.org/@babel/helper-simple-access/-/helper-simple-access-7.12.1.tgz",
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@@ -68,12 +134,51 @@
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+        "@babel/parser": {
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+          "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.12.10.tgz",
+          "integrity": "sha512-PJdRPwyoOqFAWfLytxrWwGrAxghCgh/yTNCYciOz8QgjflA7aZhECPZAa2VUedKg2+QMWkI0L9lynh2SNmNEgA==",
           "dev": true
         },
+        "@babel/template": {
+          "version": "7.12.7",
+          "resolved": "https://registry.npmjs.org/@babel/template/-/template-7.12.7.tgz",
+          "integrity": "sha512-GkDzmHS6GV7ZeXfJZ0tLRBhZcMcY0/Lnb+eEbXDBfCAcZCjrZKe6p3J4we/D24O9Y8enxWAg1cWwof59yLh2ow==",
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+          "resolved": "https://registry.npmjs.org/@babel/traverse/-/traverse-7.12.10.tgz",
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+          "dev": true,
+          "requires": {
+            "@babel/code-frame": "^7.10.4",
+            "@babel/generator": "^7.12.10",
+            "@babel/helper-function-name": "^7.10.4",
+            "@babel/helper-split-export-declaration": "^7.11.0",
+            "@babel/parser": "^7.12.10",
+            "@babel/types": "^7.12.10",
+            "debug": "^4.1.0",
+            "globals": "^11.1.0",
+            "lodash": "^4.17.19"
+          }
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+        "@babel/types": {
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+          "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.12.10.tgz",
+          "integrity": "sha512-sf6wboJV5mGyip2hIpDSKsr80RszPinEFjsHTalMxZAZkoQ2/2yQzxlcFN52SJqsyPfLtPmenL4g2KB3KJXPDw==",
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+          "requires": {
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+            "lodash": "^4.17.19",
+            "to-fast-properties": "^2.0.0"
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@@ -359,14 +464,87 @@
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+      "version": "7.12.5",
+      "resolved": "https://registry.npmjs.org/@babel/helpers/-/helpers-7.12.5.tgz",
+      "integrity": "sha512-lgKGMQlKqA8meJqKsW6rUnc4MdUk35Ln0ATDqdM1a/UpARODdI4j5Y5lVfUScnSNkJcdCRAaWkspykNoFg9sJA==",
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         "@babel/template": "^7.10.4",
-        "@babel/traverse": "^7.10.4",
-        "@babel/types": "^7.10.4"
+        "@babel/traverse": "^7.12.5",
+        "@babel/types": "^7.12.5"
+      },
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+          "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.10.4.tgz",
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+            "jsesc": "^2.5.1",
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+          "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.10.4.tgz",
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+            "chalk": "^2.0.0",
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+          "resolved": "https://registry.npmjs.org/@babel/traverse/-/traverse-7.12.10.tgz",
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+          "requires": {
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+            "@babel/generator": "^7.12.10",
+            "@babel/helper-function-name": "^7.10.4",
+            "@babel/helper-split-export-declaration": "^7.11.0",
+            "@babel/parser": "^7.12.10",
+            "@babel/types": "^7.12.10",
+            "debug": "^4.1.0",
+            "globals": "^11.1.0",
+            "lodash": "^4.17.19"
+          }
+        },
+        "@babel/types": {
+          "version": "7.12.10",
+          "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.12.10.tgz",
+          "integrity": "sha512-sf6wboJV5mGyip2hIpDSKsr80RszPinEFjsHTalMxZAZkoQ2/2yQzxlcFN52SJqsyPfLtPmenL4g2KB3KJXPDw==",
+          "dev": true,
+          "requires": {
+            "@babel/helper-validator-identifier": "^7.10.4",
+            "lodash": "^4.17.19",
+            "to-fast-properties": "^2.0.0"
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+        },
+        "source-map": {
+          "version": "0.5.7",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.5.7.tgz",
+          "integrity": "sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w=",
+          "dev": true
+        }
       }
     },
     "@babel/highlight": {
@@ -3860,9 +4038,9 @@
       "dev": true
     },
     "gensync": {
-      "version": "1.0.0-beta.1",
-      "resolved": "https://registry.npmjs.org/gensync/-/gensync-1.0.0-beta.1.tgz",
-      "integrity": "sha512-r8EC6NO1sngH/zdD9fiRDLdcgnbayXah+mLgManTaIZJqEC1MZstmnox8KpnI2/fxQwrp5OpCOYWLp4rBl4Jcg==",
+      "version": "1.0.0-beta.2",
+      "resolved": "https://registry.npmjs.org/gensync/-/gensync-1.0.0-beta.2.tgz",
+      "integrity": "sha512-3hN7NaskYvMDLQY55gnW3NQ+mesEAepTqlg+VEbj7zzqEMBVNhzcGYYeqFo/TlYz6eQiFcp1HcsCZO+nGgS8zg==",
       "dev": true
     },
     "get-caller-file": {
diff --git a/package.json b/package.json
index a82ddaf..4f16c52 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,7 @@
   "author": "Luuc van der Zee <luuc_v_d_zee@hotmail.com>",
   "license": "MIT",
   "devDependencies": {
-    "@babel/core": "^7.11.4",
+    "@babel/core": "^7.12.10",
     "@babel/preset-env": "^7.11.0",
     "d3-geo": "^2.0.1",
     "d3-scale": "^3.2.1",