diff --git a/yarn.lock b/yarn.lock
index 16fc7c3..dd4e16f 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -26,8 +26,8 @@ balanced-match@^1.0.0:
   resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.0.tgz#89b4d199ab2bee49de164ea02b89ce462d71b767"
 
 bl@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/bl/-/bl-3.0.0.tgz#3611ec00579fd18561754360b21e9f784500ff88"
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/bl/-/bl-3.0.1.tgz#1cbb439299609e419b5a74d7fce2f8b37d8e5c6f"
   dependencies:
     readable-stream "^3.0.1"
 
@@ -328,8 +328,8 @@ readable-stream@^2.0.6:
     util-deprecate "~1.0.1"
 
 readable-stream@^3.0.1, readable-stream@^3.1.1:
-  version "3.4.0"
-  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-3.4.0.tgz#a51c26754658e0a3c21dbf59163bd45ba6f447fc"
+  version "3.6.0"
+  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-3.6.0.tgz#337bbda3adc0706bd3e024426a286d4b4b2c9198"
   dependencies:
     inherits "^2.0.3"
     string_decoder "^1.1.1"
@@ -341,7 +341,7 @@ rimraf@^3.0.0:
   dependencies:
     glob "^7.1.3"
 
-safe-buffer@^5.0.1, safe-buffer@^5.1.2, safe-buffer@~5.2.0:
+safe-buffer@^5.0.1, safe-buffer@^5.1.2:
   version "5.2.0"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.2.0.tgz#b74daec49b1148f88c64b68d49b1e815c1f2f519"
 
@@ -349,6 +349,10 @@ 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"
 
+safe-buffer@~5.2.0:
+  version "5.2.1"
+  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.2.1.tgz#1eaf9fa9bdb1fdd4ec75f58f9cdb4e6b7827eec6"
+
 semver@^5.4.1:
   version "5.7.1"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.7.1.tgz#a954f931aeba508d307bbf069eff0c01c96116f7"