diff --git a/karma.conf.js b/karma.conf.js
index b3e34cd..ba26ec4 100644
--- a/karma.conf.js
+++ b/karma.conf.js
@@ -13,7 +13,7 @@ module.exports = function(config) {
     },
     browserify: {
       debug: true,
-      transform: [['babelify', { presets: ['env'], plugins: ['istanbul'] }]]
+      transform: [['babelify', { presets: ['@babel/preset-env'], plugins: ['istanbul'] }]]
     },
     reporters: ['spec', 'coverage-istanbul'],
     coverageIstanbulReporter: {
diff --git a/package-lock.json b/package-lock.json
index 18a1294..cc25da4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,9 +1,1043 @@
 {
   "name": "c3",
-  "version": "0.6.6",
+  "version": "0.6.7",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
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+      "dev": true,
+      "requires": {
+        "@babel/highlight": "7.0.0"
+      }
+    },
+    "@babel/core": {
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+      "resolved": "https://registry.npmjs.org/@babel/core/-/core-7.0.0.tgz",
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+      "dev": true,
+      "requires": {
+        "@babel/code-frame": "7.0.0",
+        "@babel/generator": "7.0.0",
+        "@babel/helpers": "7.0.0",
+        "@babel/parser": "7.0.0",
+        "@babel/template": "7.0.0",
+        "@babel/traverse": "7.0.0",
+        "@babel/types": "7.0.0",
+        "convert-source-map": "1.5.1",
+        "debug": "3.1.0",
+        "json5": "0.5.1",
+        "lodash": "4.17.10",
+        "resolve": "1.5.0",
+        "semver": "5.5.0",
+        "source-map": "0.5.7"
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+        }
+      }
+    },
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+      "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.0.0.tgz",
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+        "jsesc": "2.5.1",
+        "lodash": "4.17.10",
+        "source-map": "0.5.7",
+        "trim-right": "1.0.1"
+      },
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+          "integrity": "sha1-5CGiqOINawgZ3yiQj3glJrlt0f4=",
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+        }
+      }
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+        }
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+      "requires": {
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+        "colors": "1.0.3",
+        "cycle": "1.0.3",
+        "eyes": "0.1.8",
+        "isstream": "0.1.2",
+        "stack-trace": "0.0.10"
       },
       "dependencies": {
         "async": {
@@ -11160,20 +10452,6 @@
         }
       }
     },
-    "with-callback": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/with-callback/-/with-callback-1.0.2.tgz",
-      "integrity": "sha1-oJYpuakgAo1yFAT7Q1vc/1yRvCE=",
-      "dev": true,
-      "optional": true
-    },
-    "wordwrap": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-1.0.0.tgz",
-      "integrity": "sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus=",
-      "dev": true,
-      "optional": true
-    },
     "wrappy": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
@@ -11186,9 +10464,9 @@
       "integrity": "sha512-xuPeK4OdjWqtfi59ylvVL0Yn35SF3zgcAcv7rBPFHVaEapaDr4GdGgm3j7ckTwH9wHL7fGmgfAnb0+THrHb8tA==",
       "dev": true,
       "requires": {
-        "graceful-fs": "^4.1.11",
-        "imurmurhash": "^0.1.4",
-        "signal-exit": "^3.0.2"
+        "graceful-fs": "4.1.11",
+        "imurmurhash": "0.1.4",
+        "signal-exit": "3.0.2"
       }
     },
     "ws": {
@@ -11197,9 +10475,9 @@
       "integrity": "sha512-nnWLa/NwZSt4KQJu51MYlCcSQ5g7INpOrOMt4XV8j4dqTXdmlUmSHQ8/oLC069ckre0fRsgfvsKwbTdtKLCDkA==",
       "dev": true,
       "requires": {
-        "async-limiter": "~1.0.0",
-        "safe-buffer": "~5.1.0",
-        "ultron": "~1.1.0"
+        "async-limiter": "1.0.0",
+        "safe-buffer": "5.1.1",
+        "ultron": "1.1.1"
       }
     },
     "xdg-basedir": {
@@ -11214,13 +10492,6 @@
       "integrity": "sha1-wodrBhaKrcQOV9l+gRkayPQ5iz4=",
       "dev": true
     },
-    "xregexp": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/xregexp/-/xregexp-2.0.0.tgz",
-      "integrity": "sha1-UqY+VsoLhKfzpfPWGHLxJq16WUM=",
-      "dev": true,
-      "optional": true
-    },
     "xtend": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz",
@@ -11240,9 +10511,9 @@
       "dev": true,
       "optional": true,
       "requires": {
-        "camelcase": "^1.0.2",
-        "cliui": "^2.1.0",
-        "decamelize": "^1.0.0",
+        "camelcase": "1.2.1",
+        "cliui": "2.1.0",
+        "decamelize": "1.2.0",
         "window-size": "0.1.0"
       }
     },
@@ -11253,7 +10524,7 @@
       "dev": true,
       "optional": true,
       "requires": {
-        "fd-slicer": "~1.0.1"
+        "fd-slicer": "1.0.1"
       }
     },
     "yeast": {
diff --git a/package.json b/package.json
index 3bc0b96..c6e4f70 100644
--- a/package.json
+++ b/package.json
@@ -54,17 +54,16 @@
     "d3": "^5.0.0"
   },
   "devDependencies": {
-    "babel-core": "^6.26.0",
-    "babel-plugin-external-helpers": "^6.22.0",
-    "babel-plugin-istanbul": "^4.1.6",
-    "babel-preset-env": "^1.7.0",
+    "@babel/core": "^7.0.0",
+    "@babel/preset-env": "^7.0.0",
+    "babel-plugin-istanbul": "^5.0.1",
     "babelify": "^10.0.0",
     "browserify": "^16.1.1",
     "clean-css-cli": "^4.1.11",
     "codecov": "^3.0.4",
     "gh-pages": "^1.2.0",
     "jasmine-core": "^2.3.4",
-    "jshint": "^2.9.6",
+    "jshint": "2.9.6",
     "jshint-stylish": "^2.1.0",
     "karma": "^3.0.0",
     "karma-browserify": "^5.3.0",
@@ -76,7 +75,7 @@
     "nodemon": "^1.18.3",
     "npm-run-all": "^4.1.3",
     "rollup": "^0.65.0",
-    "rollup-plugin-babel": "^3.0.3",
+    "rollup-plugin-babel": "^4.0.3",
     "sass": "^1.10.3",
     "status-back": "^1.1.0",
     "uglify-js": "^3.3.17",
diff --git a/rollup.config.js b/rollup.config.js
index 67946b5..a4cc84b 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -13,12 +13,9 @@ export default {
         }
     },
     plugins: [babel({
-        presets: [['env', {
+        presets: [['@babel/preset-env', {
             modules: false
-        }]],
-        plugins: [
-            'external-helpers'
-        ]
+        }]]
     })],
     external: ['d3'],
 };