diff --git a/package.json b/package.json
index 3a795a3..ca1dce9 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
   "license": "MIT",
   "devDependencies": {
     "@types/tape": "^4.2.28",
-    "babel-core": "^6.22.1",
+    "babel-cli": "^6.22.2",
     "babel-preset-es2015": "^6.22.0",
     "cpx": "^1.5.0",
     "redux": "^3.6.0",
diff --git a/yarn.lock b/yarn.lock
index ac08a33..7c3aeef 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -104,6 +104,27 @@ aws4@^1.2.1:
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/aws4/-/aws4-1.5.0.tgz#0a29ffb79c31c9e712eeb087e8e7a64b4a56d755"
 
+babel-cli@^6.22.2:
+  version "6.22.2"
+  resolved "https://registry.yarnpkg.com/babel-cli/-/babel-cli-6.22.2.tgz#3f814c8acf52759082b8fedd9627f938936ab559"
+  dependencies:
+    babel-core "^6.22.1"
+    babel-polyfill "^6.22.0"
+    babel-register "^6.22.0"
+    babel-runtime "^6.22.0"
+    commander "^2.8.1"
+    convert-source-map "^1.1.0"
+    fs-readdir-recursive "^1.0.0"
+    glob "^7.0.0"
+    lodash "^4.2.0"
+    output-file-sync "^1.1.0"
+    path-is-absolute "^1.0.0"
+    slash "^1.0.0"
+    source-map "^0.5.0"
+    v8flags "^2.0.10"
+  optionalDependencies:
+    chokidar "^1.6.1"
+
 babel-code-frame@^6.22.0:
   version "6.22.0"
   resolved "https://registry.yarnpkg.com/babel-code-frame/-/babel-code-frame-6.22.0.tgz#027620bee567a88c32561574e7fd0801d33118e4"
@@ -416,6 +437,14 @@ babel-plugin-transform-strict-mode@^6.22.0:
     babel-runtime "^6.22.0"
     babel-types "^6.22.0"
 
+babel-polyfill@^6.22.0:
+  version "6.22.0"
+  resolved "https://registry.yarnpkg.com/babel-polyfill/-/babel-polyfill-6.22.0.tgz#1ac99ebdcc6ba4db1e2618c387b2084a82154a3b"
+  dependencies:
+    babel-runtime "^6.22.0"
+    core-js "^2.4.0"
+    regenerator-runtime "^0.10.0"
+
 babel-preset-es2015@^6.22.0:
   version "6.22.0"
   resolved "https://registry.yarnpkg.com/babel-preset-es2015/-/babel-preset-es2015-6.22.0.tgz#af5a98ecb35eb8af764ad8a5a05eb36dc4386835"
@@ -560,7 +589,7 @@ chalk@^1.1.0, chalk@^1.1.1:
     strip-ansi "^3.0.0"
     supports-color "^2.0.0"
 
-chokidar@^1.6.0:
+chokidar@^1.6.0, chokidar@^1.6.1:
   version "1.6.1"
   resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-1.6.1.tgz#2f4447ab5e96e50fb3d789fd90d4c72e0e4c70c2"
   dependencies:
@@ -589,7 +618,7 @@ combined-stream@^1.0.5, combined-stream@~1.0.5:
   dependencies:
     delayed-stream "~1.0.0"
 
-commander@^2.9.0:
+commander@^2.8.1, commander@^2.9.0:
   version "2.9.0"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.9.0.tgz#9c99094176e12240cb22d6c5146098400fe0f7d4"
   dependencies:
@@ -813,6 +842,10 @@ form-data@~2.1.1:
     combined-stream "^1.0.5"
     mime-types "^2.1.12"
 
+fs-readdir-recursive@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/fs-readdir-recursive/-/fs-readdir-recursive-1.0.0.tgz#8cd1745c8b4f8a29c8caec392476921ba195f560"
+
 fs.realpath@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/fs.realpath/-/fs.realpath-1.0.0.tgz#1504ad2523158caa40db4a2787cb01411994ea4f"
@@ -894,7 +927,7 @@ glob2base@^0.0.12:
   dependencies:
     find-index "^0.1.1"
 
-glob@^7.0.3, glob@^7.0.5, glob@~7.1.0:
+glob@^7.0.0, glob@^7.0.3, glob@^7.0.5, glob@~7.1.0:
   version "7.1.1"
   resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.1.tgz#805211df04faaf1c63a3600306cdf5ade50b2ec8"
   dependencies:
@@ -919,7 +952,7 @@ globals@^9.0.0:
   version "9.14.0"
   resolved "https://registry.yarnpkg.com/globals/-/globals-9.14.0.tgz#8859936af0038741263053b39d0e76ca241e4034"
 
-graceful-fs@^4.1.2:
+graceful-fs@^4.1.2, graceful-fs@^4.1.4:
   version "4.1.11"
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.1.11.tgz#0e8bdfe4d1ddb8854d64e04ea7c00e2a026e5658"
 
@@ -1341,6 +1374,14 @@ os-tmpdir@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/os-tmpdir/-/os-tmpdir-1.0.2.tgz#bbe67406c79aa85c5cfec766fe5734555dfa1274"
 
+output-file-sync@^1.1.0:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/output-file-sync/-/output-file-sync-1.1.2.tgz#d0a33eefe61a205facb90092e826598d5245ce76"
+  dependencies:
+    graceful-fs "^4.1.4"
+    mkdirp "^0.5.1"
+    object-assign "^4.1.0"
+
 parse-glob@^3.0.4:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/parse-glob/-/parse-glob-3.0.4.tgz#b2c376cfb11f35513badd173ef0bb6e3a388391c"
@@ -1803,7 +1844,7 @@ uuid@^3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.0.1.tgz#6544bba2dfda8c1cf17e629a3a305e2bb1fee6c1"
 
-v8flags@^2.0.11:
+v8flags@^2.0.10, v8flags@^2.0.11:
   version "2.0.11"
   resolved "https://registry.yarnpkg.com/v8flags/-/v8flags-2.0.11.tgz#bca8f30f0d6d60612cc2c00641e6962d42ae6881"
   dependencies: