diff --git a/package.json b/package.json
index 966fa326..0ca8d1ff 100644
--- a/package.json
+++ b/package.json
@@ -57,7 +57,7 @@
 		"knockout-postbox": "0.6.1",
 		"knockout-sortable": "1.2.2",
 		"knockout.validation": "2.0.4",
-		"less": "4.4.2",
+		"less": "4.5.1",
 		"lie": "3.3.0",
 		"lightbox2": "2.11.5",
 		"moment": "2.30.1",
diff --git a/yarn.lock b/yarn.lock
index eb8797f9..d65fc386 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3755,10 +3755,10 @@ lead@^4.0.0:
   resolved "https://registry.npmjs.org/lead/-/lead-4.0.0.tgz"
   integrity sha512-DpMa59o5uGUWWjruMp71e6knmwKU3jRBBn1kjuLWN9EeIOxNeSAwvHf03WIl8g/ZMR2oSQC9ej3yeLBwdDc/pg==
 
-less@4.4.2:
-  version "4.4.2"
-  resolved "https://registry.yarnpkg.com/less/-/less-4.4.2.tgz#fa4291fdb0334de91163622cc038f4bd3eb6b8d7"
-  integrity sha512-j1n1IuTX1VQjIy3tT7cyGbX7nvQOsFLoIqobZv4ttI5axP923gA44zUj6miiA6R5Aoms4sEGVIIcucXUbRI14g==
+less@4.5.1:
+  version "4.5.1"
+  resolved "https://registry.yarnpkg.com/less/-/less-4.5.1.tgz#739266532249a3de232e8b60ffb1b27ad5ec6ad8"
+  integrity sha512-UKgI3/KON4u6ngSsnDADsUERqhZknsVZbnuzlRZXLQCmfC/MDld42fTydUE9B+Mla1AL6SJ/Pp6SlEFi/AVGfw==
   dependencies:
     copy-anything "^2.0.1"
     parse-node-version "^1.0.1"