diff --git a/d3_graph_generator/yarn.lock b/d3_graph_generator/yarn.lock
index eb9fd3c..057389c 100644
--- a/d3_graph_generator/yarn.lock
+++ b/d3_graph_generator/yarn.lock
@@ -3,9 +3,9 @@
 
 
 "@adobe/css-tools@^4.0.1":
-  version "4.0.1"
-  resolved "https://registry.yarnpkg.com/@adobe/css-tools/-/css-tools-4.0.1.tgz#b38b444ad3aa5fedbb15f2f746dcd934226a12dd"
-  integrity sha512-+u76oB43nOHrF4DDWRLWDCtci7f3QJoEBigemIdIeTi1ODqjx6Tad9NCVnPRwewWlKkVab5PlK8DCtPTyX7S8g==
+  version "4.5.0"
+  resolved "https://registry.yarnpkg.com/@adobe/css-tools/-/css-tools-4.5.0.tgz#b5b71a25a4d16afa2482592ddfa62fccc60bc7d1"
+  integrity sha512-6OzddxPio9UiWTCemp4N8cYLV2ZN1ncRnV1cVGtve7dhPOtRkleRyx32GQCYSwDYgaHU3USMm84tNsvKzRCa1Q==
 
 "@apideck/better-ajv-errors@^0.3.1":
   version "0.3.6"