diff --git a/yarn.lock b/yarn.lock
index 5e05426..d9d9789 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1189,10 +1189,11 @@ bindings@~1.2.1:
   resolved "https://registry.yarnpkg.com/bindings/-/bindings-1.2.1.tgz#14ad6113812d2d37d72e67b4cacb4bb726505f11"
 
 bl@^1.0.0:
-  version "1.2.1"
-  resolved "https://registry.yarnpkg.com/bl/-/bl-1.2.1.tgz#cac328f7bee45730d404b692203fcb590e172d5e"
+  version "1.2.3"
+  resolved "https://registry.yarnpkg.com/bl/-/bl-1.2.3.tgz#1e8dd80142eac80d7158c9dccc047fb620e035e7"
   dependencies:
-    readable-stream "^2.0.5"
+    readable-stream "^2.3.5"
+    safe-buffer "^5.1.1"
 
 block-stream@*:
   version "0.0.9"
@@ -2965,11 +2966,11 @@ fd-slicer@~1.0.1:
   dependencies:
     pend "~1.2.0"
 
-feed@^0.2.6:
-  version "0.2.6"
-  resolved "https://registry.yarnpkg.com/feed/-/feed-0.2.6.tgz#0c9df2457a71a4bd4943d4fb65fcdbe9c6bc576c"
+feed@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/feed/-/feed-1.1.1.tgz#914897517e94fa327cc6f73bb585a47c4a9ed321"
   dependencies:
-    xml ">= 0.0.5"
+    xml "^1.0.1"
 
 figures@^1.3.5:
   version "1.7.0"
@@ -4307,6 +4308,10 @@ inherits@2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.1.tgz#b17d08d326b4423e568eff719f91b0b1cbdf69f1"
 
+inherits@~2.0.3:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.4.tgz#0fa2c64f932917c3433a0ded55363aae37416b7c"
+
 ini@^1.3.4, ini@~1.3.0:
   version "1.3.4"
   resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.4.tgz#0537cb79daf59b59a1a517dff706c86ec039162e"
@@ -7312,10 +7317,14 @@ private@^0.1.6, private@~0.1.5:
   version "0.1.7"
   resolved "https://registry.yarnpkg.com/private/-/private-0.1.7.tgz#68ce5e8a1ef0a23bb570cc28537b5332aba63ef1"
 
-process-nextick-args@^1.0.6, process-nextick-args@~1.0.6:
+process-nextick-args@^1.0.6:
   version "1.0.7"
   resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-1.0.7.tgz#150e20b756590ad3f91093f25a4f2ad8bff30ba3"
 
+process-nextick-args@~2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-2.0.1.tgz#7820d9b16120cc55ca9ae7792680ae7dba6d7fe2"
+
 process@^0.11.0, process@~0.11.0:
   version "0.11.10"
   resolved "https://registry.yarnpkg.com/process/-/process-0.11.10.tgz#7332300e840161bda3e69a1d1d91a7d4bc16f182"
@@ -7797,16 +7806,16 @@ readable-stream@1.1.x, "readable-stream@>=1.1.13-1 <1.2.0-0", readable-stream@^1
     isarray "0.0.1"
     string_decoder "~0.10.x"
 
-readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.4, readable-stream@^2.0.5, readable-stream@^2.0.6, readable-stream@^2.1.4, readable-stream@^2.1.5, readable-stream@^2.2.2, readable-stream@^2.2.6:
-  version "2.2.11"
-  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.2.11.tgz#0796b31f8d7688007ff0b93a8088d34aa17c0f72"
+readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.4, readable-stream@^2.0.5, readable-stream@^2.0.6, readable-stream@^2.1.4, readable-stream@^2.1.5, readable-stream@^2.2.2, readable-stream@^2.2.6, readable-stream@^2.3.5:
+  version "2.3.7"
+  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.7.tgz#1eca1cf711aef814c04f62252a36a62f6cb23b57"
   dependencies:
     core-util-is "~1.0.0"
-    inherits "~2.0.1"
+    inherits "~2.0.3"
     isarray "~1.0.0"
-    process-nextick-args "~1.0.6"
-    safe-buffer "~5.0.1"
-    string_decoder "~1.0.0"
+    process-nextick-args "~2.0.0"
+    safe-buffer "~5.1.1"
+    string_decoder "~1.1.1"
     util-deprecate "~1.0.1"
 
 readdirp@^2.0.0:
@@ -8214,13 +8223,13 @@ rx-lite@^3.1.2:
   version "3.1.2"
   resolved "https://registry.yarnpkg.com/rx-lite/-/rx-lite-3.1.2.tgz#19ce502ca572665f3b647b10939f97fd1615f102"
 
-safe-buffer@^5.0.1:
-  version "5.1.0"
-  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.0.tgz#fe4c8460397f9eaaaa58e73be46273408a45e223"
+safe-buffer@^5.0.1, safe-buffer@^5.1.1:
+  version "5.2.1"
+  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.2.1.tgz#1eaf9fa9bdb1fdd4ec75f58f9cdb4e6b7827eec6"
 
-safe-buffer@~5.0.1:
-  version "5.0.1"
-  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.0.1.tgz#d263ca54696cd8a306b5ca6551e92de57918fbe7"
+safe-buffer@~5.1.0, safe-buffer@~5.1.1:
+  version "5.1.2"
+  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.2.tgz#991ec69d296e0313747d59bdfd2b745c35f8828d"
 
 sax@^1.1.4, sax@~1.2.1:
   version "1.2.2"
@@ -8641,11 +8650,11 @@ string_decoder@^0.10.25, string_decoder@~0.10.25, string_decoder@~0.10.x:
   version "0.10.31"
   resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-0.10.31.tgz#62e203bc41766c6c28c9fc84301dab1c5310fa94"
 
-string_decoder@~1.0.0:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.0.2.tgz#b29e1f4e1125fa97a10382b8a533737b7491e179"
+string_decoder@~1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.1.1.tgz#9cf1611ba62685d7030ae9e4ba34149c3af03fc8"
   dependencies:
-    safe-buffer "~5.0.1"
+    safe-buffer "~5.1.0"
 
 stringstream@~0.0.4:
   version "0.0.5"
@@ -9612,7 +9621,7 @@ xml-escape@~1.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/xml-name-validator/-/xml-name-validator-2.0.1.tgz#4d8b8f1eccd3419aa362061becef515e1e559635"
 
-"xml@>= 0.0.5":
+xml@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/xml/-/xml-1.0.1.tgz#78ba72020029c5bc87b8a81a3cfcd74b4a2fc1e5"