diff --git a/yarn.lock b/yarn.lock
index 3abd041..561106c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2318,8 +2318,8 @@ faye-websocket@~0.11.1:
     websocket-driver ">=0.5.1"
 
 figgy-pudding@^3.5.1:
-  version "3.5.1"
-  resolved "https://registry.yarnpkg.com/figgy-pudding/-/figgy-pudding-3.5.1.tgz#862470112901c727a0e495a80744bd5baa1d6790"
+  version "3.5.2"
+  resolved "https://registry.yarnpkg.com/figgy-pudding/-/figgy-pudding-3.5.2.tgz#b4eee8148abb01dcf1d1ac34367d59e12fa61d6e"
 
 file-loader@^2.0.0:
   version "2.0.0"
@@ -4944,9 +4944,9 @@ send@0.17.1:
     range-parser "~1.2.1"
     statuses "~1.5.0"
 
-serialize-javascript@^2.1.1:
-  version "2.1.1"
-  resolved "https://registry.yarnpkg.com/serialize-javascript/-/serialize-javascript-1.7.0.tgz#d6e0dfb2a3832a8c94468e6eb1db97e55a192a65"
+serialize-javascript@^1.7.0:
+  version "1.9.1"
+  resolved "https://registry.yarnpkg.com/serialize-javascript/-/serialize-javascript-1.9.1.tgz#cfc200aef77b600c47da9bb8149c943e798c2fdb"
 
 serve-index@^1.9.1:
   version "1.9.1"
@@ -5147,8 +5147,8 @@ sprintf-js@~1.0.2:
   resolved "https://registry.yarnpkg.com/sprintf-js/-/sprintf-js-1.0.3.tgz#04e6926f662895354f3dd015203633b857297e2c"
 
 ssri@^6.0.1:
-  version "6.0.1"
-  resolved "https://registry.yarnpkg.com/ssri/-/ssri-6.0.1.tgz#2a3c41b28dd45b62b63676ecb74001265ae9edd8"
+  version "6.0.2"
+  resolved "https://registry.yarnpkg.com/ssri/-/ssri-6.0.2.tgz#157939134f20464e7301ddba3e90ffa8f7728ac5"
   dependencies:
     figgy-pudding "^3.5.1"