diff --git a/package-lock.json b/package-lock.json
index b62e0da6..3152a9d9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2614,9 +2614,9 @@
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     },
     "sass": {
-      "version": "1.49.10",
-      "resolved": "https://registry.npmjs.org/sass/-/sass-1.49.10.tgz",
-      "integrity": "sha512-w37zfWJwKu4I78U4z63u1mmgoncq+v3iOB4yzQMPyAPVHHawaQSnu9C9ysGQnZEhW609jkcLioJcMCqm75JMdg==",
+      "version": "1.66.1",
+      "resolved": "https://registry.npmjs.org/sass/-/sass-1.66.1.tgz",
+      "integrity": "sha512-50c+zTsZOJVgFfTgwwEzkjA3/QACgdNsKueWPyAR0mRINIvLAStVQBbPg14iuqEQ74NPDbXzJARJ/O4SI1zftA==",
       "requires": {
         "chokidar": ">=3.0.0 <4.0.0",
         "immutable": "^4.0.0",
@@ -2624,9 +2624,9 @@
       },
       "dependencies": {
         "immutable": {
-          "version": "4.0.0",
-          "resolved": "https://registry.npmjs.org/immutable/-/immutable-4.0.0.tgz",
-          "integrity": "sha512-zIE9hX70qew5qTUjSS7wi1iwj/l7+m54KWU247nhM3v806UdGj1yDndXj+IOYxxtW9zyLI+xqFNZjTuDaLUqFw=="
+          "version": "4.3.4",
+          "resolved": "https://registry.npmjs.org/immutable/-/immutable-4.3.4.tgz",
+          "integrity": "sha512-fsXeu4J4i6WNWSikpI88v/PcVflZz+6kMhUfIwc5SY+poQRPnaf5V7qds6SUyUN3cVxEzuCab7QIoLOQ+DQ1wA=="
         }
       }
     },
diff --git a/package.json b/package.json
index 05fda8fd..230bc07c 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
     "nunjucks": "^3.2.1",
     "portscanner": "^2.1.1",
     "require-dir": "^1.0.0",
-    "sass": "^1.49.10",
+    "sass": "^1.66.1",
     "sync-request": "^6.0.0",
     "universal-analytics": "^0.5.3",
     "uuid": "^8.3.2"