diff --git a/themes/casper/yarn.lock b/themes/casper/yarn.lock
index 6bbeafd..30100b3 100644
--- a/themes/casper/yarn.lock
+++ b/themes/casper/yarn.lock
@@ -1050,7 +1050,7 @@ esutils@^2.0.2:
 
 event-stream@^3.1.7:
   version "3.3.4"
-  resolved "http://registry.npmjs.org/event-stream/-/event-stream-3.3.4.tgz#4ab4c9a0f5a54db9338b4c34d86bfce8f4b35571"
+  resolved "https://registry.npmjs.org/event-stream/-/event-stream-3.3.4.tgz#4ab4c9a0f5a54db9338b4c34d86bfce8f4b35571"
   dependencies:
     duplexer "~0.1.1"
     from "~0"
@@ -2364,8 +2364,8 @@ lru-cache@2:
   resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-2.7.3.tgz#6d4524e8b955f95d4f5b58851ce21dd72fb4e952"
 
 macaddress@^0.2.8:
-  version "0.2.8"
-  resolved "https://registry.yarnpkg.com/macaddress/-/macaddress-0.2.8.tgz#5904dc537c39ec6dbefeae902327135fa8511f12"
+  version "0.2.9"
+  resolved "https://registry.yarnpkg.com/macaddress/-/macaddress-0.2.9.tgz#3579b8b9acd5b96b4553abf0f394185a86813cb3"
 
 make-iterator@^1.0.0:
   version "1.0.1"