diff --git a/package.json b/package.json
index eedc683..0d826fa 100644
--- a/package.json
+++ b/package.json
@@ -27,13 +27,13 @@
   },
   "homepage": "https://bautrukevich.github.io/preload",
   "devDependencies": {
-    "babel": "^6.5.2",
-    "babel-core": "^6.21.0",
-    "babel-eslint": "^7.1.1",
-    "babel-loader": "^6.2.10",
+    "babel": "6.23.0",
+    "babel-core": "6.26.0",
+    "babel-eslint": "7.2.3",
+    "babel-loader": "6.4.1",
     "babel-plugin-add-module-exports": "0.2.1",
-    "babel-preset-latest": "^6.16.0",
-    "babel-register": "^6.18.0",
+    "babel-preset-latest": "6.24.1",
+    "babel-register": "6.26.0",
     "babel-require": "1.0.1",
     "chai": "3.5.0",
     "chai-as-promised": "7.1.1",
diff --git a/yarn.lock b/yarn.lock
index 9de3a54..14f8be0 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -291,6 +291,31 @@ babel-code-frame@^6.16.0, babel-code-frame@^6.22.0, babel-code-frame@^6.26.0:
     esutils "^2.0.2"
     js-tokens "^3.0.2"
 
+babel-core@6.26.0, babel-core@^6.26.0:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-core/-/babel-core-6.26.0.tgz#af32f78b31a6fcef119c87b0fd8d9753f03a0bb8"
+  integrity sha1-rzL3izGm/O8RnIew/Y2XU/A6C7g=
+  dependencies:
+    babel-code-frame "^6.26.0"
+    babel-generator "^6.26.0"
+    babel-helpers "^6.24.1"
+    babel-messages "^6.23.0"
+    babel-register "^6.26.0"
+    babel-runtime "^6.26.0"
+    babel-template "^6.26.0"
+    babel-traverse "^6.26.0"
+    babel-types "^6.26.0"
+    babylon "^6.18.0"
+    convert-source-map "^1.5.0"
+    debug "^2.6.8"
+    json5 "^0.5.1"
+    lodash "^4.17.4"
+    minimatch "^3.0.4"
+    path-is-absolute "^1.0.1"
+    private "^0.1.7"
+    slash "^1.0.0"
+    source-map "^0.5.6"
+
 babel-core@^5.6.21:
   version "5.8.38"
   resolved "https://registry.yarnpkg.com/babel-core/-/babel-core-5.8.38.tgz#1fcaee79d7e61b750b00b8e54f6dfc9d0af86558"
@@ -342,33 +367,10 @@ babel-core@^5.6.21:
     trim-right "^1.0.0"
     try-resolve "^1.0.0"
 
-babel-core@^6.21.0, babel-core@^6.26.0:
-  version "6.26.0"
-  resolved "https://registry.yarnpkg.com/babel-core/-/babel-core-6.26.0.tgz#af32f78b31a6fcef119c87b0fd8d9753f03a0bb8"
-  dependencies:
-    babel-code-frame "^6.26.0"
-    babel-generator "^6.26.0"
-    babel-helpers "^6.24.1"
-    babel-messages "^6.23.0"
-    babel-register "^6.26.0"
-    babel-runtime "^6.26.0"
-    babel-template "^6.26.0"
-    babel-traverse "^6.26.0"
-    babel-types "^6.26.0"
-    babylon "^6.18.0"
-    convert-source-map "^1.5.0"
-    debug "^2.6.8"
-    json5 "^0.5.1"
-    lodash "^4.17.4"
-    minimatch "^3.0.4"
-    path-is-absolute "^1.0.1"
-    private "^0.1.7"
-    slash "^1.0.0"
-    source-map "^0.5.6"
-
-babel-eslint@^7.1.1:
+babel-eslint@7.2.3:
   version "7.2.3"
   resolved "https://registry.yarnpkg.com/babel-eslint/-/babel-eslint-7.2.3.tgz#b2fe2d80126470f5c19442dc757253a897710827"
+  integrity sha1-sv4tgBJkcPXBlELcdXJTqJdxCCc=
   dependencies:
     babel-code-frame "^6.22.0"
     babel-traverse "^6.23.1"
@@ -489,9 +491,10 @@ babel-helpers@^6.24.1:
     babel-runtime "^6.22.0"
     babel-template "^6.24.1"
 
-babel-loader@^6.2.10:
+babel-loader@6.4.1:
   version "6.4.1"
   resolved "https://registry.yarnpkg.com/babel-loader/-/babel-loader-6.4.1.tgz#0b34112d5b0748a8dcdbf51acf6f9bd42d50b8ca"
+  integrity sha1-CzQRLVsHSKjc2/Uaz2+b1C1QuMo=
   dependencies:
     find-cache-dir "^0.1.1"
     loader-utils "^0.2.16"
@@ -838,15 +841,16 @@ babel-preset-es2017@^6.24.1:
     babel-plugin-syntax-trailing-function-commas "^6.22.0"
     babel-plugin-transform-async-to-generator "^6.24.1"
 
-babel-preset-latest@^6.16.0:
+babel-preset-latest@6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-preset-latest/-/babel-preset-latest-6.24.1.tgz#677de069154a7485c2d25c577c02f624b85b85e8"
+  integrity sha1-Z33gaRVKdIXC0lxXfAL2JLhbheg=
   dependencies:
     babel-preset-es2015 "^6.24.1"
     babel-preset-es2016 "^6.24.1"
     babel-preset-es2017 "^6.24.1"
 
-babel-register@^6.18.0, babel-register@^6.26.0:
+babel-register@6.26.0, babel-register@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-register/-/babel-register-6.26.0.tgz#6ed021173e2fcb486d7acb45c6009a856f647071"
   dependencies:
@@ -905,6 +909,11 @@ babel-types@^6.19.0, babel-types@^6.23.0, babel-types@^6.24.1, babel-types@^6.26
     lodash "^4.17.4"
     to-fast-properties "^1.0.3"
 
+babel@6.23.0:
+  version "6.23.0"
+  resolved "https://registry.yarnpkg.com/babel/-/babel-6.23.0.tgz#d0d1e7d803e974765beea3232d4e153c0efb90f4"
+  integrity sha1-0NHn2APpdHZb7qMjLU4VPA77kPQ=
+
 babel@^5.8.23:
   version "5.8.38"
   resolved "https://registry.yarnpkg.com/babel/-/babel-5.8.38.tgz#dfb087c22894917c576fb67ce9cf328d458629fb"
@@ -922,10 +931,6 @@ babel@^5.8.23:
     slash "^1.0.0"
     source-map "^0.5.0"
 
-babel@^6.5.2:
-  version "6.23.0"
-  resolved "https://registry.yarnpkg.com/babel/-/babel-6.23.0.tgz#d0d1e7d803e974765beea3232d4e153c0efb90f4"
-
 babylon@^5.8.38:
   version "5.8.38"
   resolved "https://registry.yarnpkg.com/babylon/-/babylon-5.8.38.tgz#ec9b120b11bf6ccd4173a18bf217e60b79859ffd"