diff --git a/yarn.lock b/yarn.lock
index 535934a96..07e065b18 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2920,8 +2920,8 @@ inherits@2.0.1:
   resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.1.tgz#b17d08d326b4423e568eff719f91b0b1cbdf69f1"
 
 ini@~1.3.0:
-  version "1.3.4"
-  resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.4.tgz#0537cb79daf59b59a1a517dff706c86ec039162e"
+  version "1.3.8"
+  resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.8.tgz#a29da425b48806f34767a4efce397269af28432c"
 
 inquirer@^0.12.0:
   version "0.12.0"
@@ -4571,10 +4571,6 @@ postcss@^5.0.10, postcss@^5.0.11, postcss@^5.0.12, postcss@^5.0.13, postcss@^5.0
     source-map "^0.5.6"
     supports-color "^3.1.2"
 
-postinstall-build@^2.0.0:
-  version "2.1.3"
-  resolved "https://registry.yarnpkg.com/postinstall-build/-/postinstall-build-2.1.3.tgz#9d1886ab2949619f4c206afbe1aea95debe45c94"
-
 pre-commit@^1.1.3:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/pre-commit/-/pre-commit-1.1.3.tgz#6d5ed90740472072958c711a15f676aa2c231377"