diff --git a/yarn.lock b/yarn.lock
index d1e94c3..734191f 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2727,7 +2727,7 @@ is-plain-obj@^1.0.0:
 
 is-posix-bracket@^0.1.0:
   version "0.1.1"
-  resolved "http://registry.npmjs.org/is-posix-bracket/-/is-posix-bracket-0.1.1.tgz#3334dc79774368e92f016e6fbc0a88f5cd6e6bc4"
+  resolved "https://registry.npmjs.org/is-posix-bracket/-/is-posix-bracket-0.1.1.tgz#3334dc79774368e92f016e6fbc0a88f5cd6e6bc4"
 
 is-primitive@^2.0.0:
   version "2.0.0"
@@ -3700,7 +3700,7 @@ postcss-loader@^1.2.1:
 
 postcss-media-minmax@^2.1.0:
   version "2.1.2"
-  resolved "http://registry.npmjs.org/postcss-media-minmax/-/postcss-media-minmax-2.1.2.tgz#444c5cf8926ab5e4fd8a2509e9297e751649cdf8"
+  resolved "https://registry.npmjs.org/postcss-media-minmax/-/postcss-media-minmax-2.1.2.tgz#444c5cf8926ab5e4fd8a2509e9297e751649cdf8"
   dependencies:
     postcss "^5.0.4"
 
@@ -4674,8 +4674,8 @@ stringset@~0.2.1:
   resolved "https://registry.yarnpkg.com/stringset/-/stringset-0.2.1.tgz#ef259c4e349344377fcd1c913dd2e848c9c042b5"
 
 stringstream@~0.0.4:
-  version "0.0.5"
-  resolved "https://registry.yarnpkg.com/stringstream/-/stringstream-0.0.5.tgz#4e484cd4de5a0bbbee18e46307710a8a81621878"
+  version "0.0.6"
+  resolved "https://registry.yarnpkg.com/stringstream/-/stringstream-0.0.6.tgz#7880225b0d4ad10e30927d167a1d6f2fd3b33a72"
 
 strip-ansi@^3.0.0, strip-ansi@^3.0.1:
   version "3.0.1"