diff --git a/yarn.lock b/yarn.lock
index 93df3d9..b1d8d45 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1190,8 +1190,8 @@ dns-equal@^1.0.0:
   resolved "https://registry.npmjs.org/dns-equal/-/dns-equal-1.0.0.tgz#b39e7f1da6eb0a75ba9c17324b34753c47e0654d"
 
 dns-packet@^1.0.1:
-  version "1.1.1"
-  resolved "https://registry.npmjs.org/dns-packet/-/dns-packet-1.1.1.tgz#2369d45038af045f3898e6fa56862aed3f40296c"
+  version "1.3.4"
+  resolved "https://registry.npmjs.org/dns-packet/-/dns-packet-1.3.4.tgz#e3455065824a2507ba886c55a89963bb107dec6f"
   dependencies:
     ip "^1.1.0"
     safe-buffer "^5.0.1"
@@ -3974,7 +3974,11 @@ rxjs@^5.4.1:
   dependencies:
     symbol-observable "^1.0.1"
 
-safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@~5.1.0:
+safe-buffer@^5.0.1, safe-buffer@^5.1.0:
+  version "5.2.1"
+  resolved "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz#1eaf9fa9bdb1fdd4ec75f58f9cdb4e6b7827eec6"
+
+safe-buffer@~5.1.0:
   version "5.1.1"
   resolved "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.1.tgz#893312af69b2123def71f57889001671eeb2c853"