diff --git a/yarn.lock b/yarn.lock
index 7de5126..2b4a675 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -716,13 +716,13 @@ debug@2.6.7:
   dependencies:
     ms "2.0.0"
 
-debug@2.6.8, debug@^2.2.0, debug@~2.6.4, debug@~2.6.6:
+debug@2.6.8:
   version "2.6.8"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.8.tgz#e731531ca2ede27d188222427da17821d68ff4fc"
   dependencies:
     ms "2.0.0"
 
-debug@2.6.9, debug@^2.3.3:
+debug@2.6.9, debug@^2.2.0, debug@^2.3.3, debug@~2.6.4, debug@~2.6.6:
   version "2.6.9"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
   dependencies:
@@ -3369,10 +3369,8 @@ ultron@~1.1.0:
   resolved "https://registry.yarnpkg.com/ultron/-/ultron-1.1.0.tgz#b07a2e6a541a815fc6a34ccd4533baec307ca864"
 
 undefsafe@^2.0.2:
-  version "2.0.2"
-  resolved "https://registry.yarnpkg.com/undefsafe/-/undefsafe-2.0.2.tgz#225f6b9e0337663e0d8e7cfd686fc2836ccace76"
-  dependencies:
-    debug "^2.2.0"
+  version "2.0.5"
+  resolved "https://registry.yarnpkg.com/undefsafe/-/undefsafe-2.0.5.tgz#38733b9327bdcd226db889fb723a6efd162e6e2c"
 
 union-value@^1.0.0:
   version "1.0.0"