diff --git a/package.json b/package.json
index a7c7ea5a..e81227c0 100644
--- a/package.json
+++ b/package.json
@@ -31,14 +31,14 @@
     "babel-preset-es2015": "^6.9.0",
     "babel-preset-stage-1": "^6.5.0",
     "babel-register": "^6.9.0",
-    "babylon": "^6.17.3",
+    "babylon": "^7.0.0-beta.30",
     "colors": "^1.1.2",
     "flow-parser": "^0.*",
     "lodash": "^4.13.1",
     "micromatch": "^2.3.7",
     "node-dir": "0.1.8",
     "nomnom": "^1.8.1",
-    "recast": "^0.12.5",
+    "recast": "^0.14.1",
     "temp": "^0.8.1",
     "write-file-atomic": "^1.2.0"
   },
diff --git a/yarn.lock b/yarn.lock
index 95c406aa..2e3845c0 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -129,9 +129,9 @@ assert-plus@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/assert-plus/-/assert-plus-0.2.0.tgz#d74e1b87e7affc0db8aadb7021f3fe48101ab234"
 
-ast-types@0.9.11:
-  version "0.9.11"
-  resolved "https://registry.yarnpkg.com/ast-types/-/ast-types-0.9.11.tgz#371177bb59232ff5ceaa1d09ee5cad705b1a5aa9"
+ast-types@0.11.1:
+  version "0.11.1"
+  resolved "https://registry.yarnpkg.com/ast-types/-/ast-types-0.11.1.tgz#5bb3a8d5ba292c3f4ae94d46df37afc30300b990"
 
 async@^1.4.0, async@^1.5.0:
   version "1.5.2"
@@ -772,10 +772,14 @@ babel-types@^6.0.19, babel-types@^6.18.0, babel-types@^6.19.0, babel-types@^6.24
     lodash "^4.2.0"
     to-fast-properties "^1.0.1"
 
-babylon@^6.0.18, babylon@^6.13.0, babylon@^6.17.2, babylon@^6.17.3:
+babylon@^6.0.18, babylon@^6.13.0, babylon@^6.17.2:
   version "6.17.3"
   resolved "https://registry.yarnpkg.com/babylon/-/babylon-6.17.3.tgz#1327d709950b558f204e5352587fd0290f8d8e48"
 
+babylon@^7.0.0-beta.30:
+  version "7.0.0-beta.40"
+  resolved "https://registry.yarnpkg.com/babylon/-/babylon-7.0.0-beta.40.tgz#91fc8cd56d5eb98b28e6fde41045f2957779940a"
+
 balanced-match@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.0.tgz#89b4d199ab2bee49de164ea02b89ce462d71b767"
@@ -980,7 +984,7 @@ convert-source-map@^1.1.0:
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/convert-source-map/-/convert-source-map-1.5.0.tgz#9acd70851c6d5dfdd93d9282e5edf94a03ff46b5"
 
-core-js@^2.4.0, core-js@^2.4.1:
+core-js@^2.4.0:
   version "2.4.1"
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.4.1.tgz#4de911e667b0eae9124e34254b53aea6fc618d3e"
 
@@ -1225,7 +1229,7 @@ esprima@^2.7.1:
   version "2.7.3"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-2.7.3.tgz#96e3b70d5779f6ad49cd032673d1c312767ba581"
 
-esprima@^3.1.1, esprima@~3.1.0:
+esprima@^3.1.1:
   version "3.1.3"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-3.1.3.tgz#fdca51cee6133895e3c88d535ce49dbff62a4633"
 
@@ -1233,6 +1237,10 @@ esprima@~3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-3.0.0.tgz#53cf247acda77313e551c3aa2e73342d3fb4f7d9"
 
+esprima@~4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/esprima/-/esprima-4.0.0.tgz#4499eddcd1110e0b218bacf2fa7f7f59f55ca804"
+
 esquery@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/esquery/-/esquery-1.0.0.tgz#cfba8b57d7fba93f17298a8a006a04cda13d80fa"
@@ -2556,15 +2564,14 @@ readline2@^1.0.1:
     is-fullwidth-code-point "^1.0.0"
     mute-stream "0.0.5"
 
-recast@^0.12.5:
-  version "0.12.5"
-  resolved "https://registry.yarnpkg.com/recast/-/recast-0.12.5.tgz#1f21a04f0ffd8dea35c222492ffcfe3201c1e977"
+recast@^0.14.1:
+  version "0.14.1"
+  resolved "https://registry.yarnpkg.com/recast/-/recast-0.14.1.tgz#959ea20d7cb970bea1ec059325b8bdaf0738b788"
   dependencies:
-    ast-types "0.9.11"
-    core-js "^2.4.1"
-    esprima "~3.1.0"
+    ast-types "0.11.1"
+    esprima "~4.0.0"
     private "~0.1.5"
-    source-map "~0.5.0"
+    source-map "~0.6.1"
 
 rechoir@^0.6.2:
   version "0.6.2"
@@ -2801,7 +2808,7 @@ source-map@^0.4.4:
   dependencies:
     amdefine ">=0.0.4"
 
-source-map@^0.5.0, source-map@^0.5.3, source-map@^0.5.6, source-map@~0.5.0, source-map@~0.5.1:
+source-map@^0.5.0, source-map@^0.5.3, source-map@^0.5.6, source-map@~0.5.1:
   version "0.5.6"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.6.tgz#75ce38f52bf0733c5a7f0c118d81334a2bb5f412"
 
@@ -2811,6 +2818,10 @@ source-map@~0.2.0:
   dependencies:
     amdefine ">=0.0.4"
 
+source-map@~0.6.1:
+  version "0.6.1"
+  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.6.1.tgz#74722af32e9614e9c287a8d0bbde48b5e2f1a263"
+
 spdx-correct@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/spdx-correct/-/spdx-correct-1.0.2.tgz#4b3073d933ff51f3912f03ac5519498a4150db40"