diff --git a/yarn.lock b/yarn.lock
index 2c237c7..6862cfc 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -875,8 +875,8 @@ acorn-dynamic-import@^3.0.0:
     acorn "^5.0.0"
 
 acorn@^5.0.0, acorn@^5.6.2:
-  version "5.7.1"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.1.tgz#f095829297706a7c9776958c0afc8930a9b9d9d8"
+  version "5.7.4"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.4.tgz#3e8d8a9947d0599a1796d10225d7432f4a4acf5e"
 
 agentkeepalive@^2.2.0:
   version "2.2.0"
@@ -3569,6 +3569,10 @@ markdown-it-anchor@^5.0.2:
   version "5.0.2"
   resolved "https://registry.yarnpkg.com/markdown-it-anchor/-/markdown-it-anchor-5.0.2.tgz#cdd917a05b7bf92fb736a6dae3385c6d0d0fa552"
 
+markdown-it-charts@^1.0.5:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/markdown-it-charts/-/markdown-it-charts-1.0.5.tgz#475243d7ee79652c139e9d84895f8fda0ceca945"
+
 markdown-it-container@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/markdown-it-container/-/markdown-it-container-2.0.0.tgz#0019b43fd02eefece2f1960a2895fba81a404695"