diff --git a/package-lock.json b/package-lock.json
index 5d081d9a0d1..d539a18a1d3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8,7 +8,7 @@
       "name": "docs.flutter.dev",
       "version": "0.0.0",
       "dependencies": {
-        "bootstrap-scss": "^4.6.1",
+        "bootstrap-scss": "^5.2.3",
         "diff2html-cli": "^5.2.4",
         "firebase-tools": "^v11.1.0",
         "font-awesome": "^4.7.0",
@@ -299,9 +299,9 @@
       "integrity": "sha1-/bC0OWLKe0BFanwrtI/hc9otISI="
     },
     "node_modules/bootstrap-scss": {
-      "version": "4.6.1",
-      "resolved": "https://registry.npmjs.org/bootstrap-scss/-/bootstrap-scss-4.6.1.tgz",
-      "integrity": "sha512-8rAYXcuOUAr5SAGM0omZa9wefBR0hZMUVfcbZCCvW+Sm5nSRgI/qMEbb+oWdocwcoX9PYV1yoP722Yp5OEJlnw=="
+      "version": "5.2.3",
+      "resolved": "https://registry.npmjs.org/bootstrap-scss/-/bootstrap-scss-5.2.3.tgz",
+      "integrity": "sha512-3lU/QMvW3VAgPwefBDSI90FY71ShuT7QxIna4sz5ksE7gVIUpNWe5/VjCiHroeyyTz9pIMlSE65V7nLJqq9Cmg=="
     },
     "node_modules/boxen": {
       "version": "4.2.0",
@@ -10066,9 +10066,9 @@
       "integrity": "sha1-/bC0OWLKe0BFanwrtI/hc9otISI="
     },
     "bootstrap-scss": {
-      "version": "4.6.1",
-      "resolved": "https://registry.npmjs.org/bootstrap-scss/-/bootstrap-scss-4.6.1.tgz",
-      "integrity": "sha512-8rAYXcuOUAr5SAGM0omZa9wefBR0hZMUVfcbZCCvW+Sm5nSRgI/qMEbb+oWdocwcoX9PYV1yoP722Yp5OEJlnw=="
+      "version": "5.2.3",
+      "resolved": "https://registry.npmjs.org/bootstrap-scss/-/bootstrap-scss-5.2.3.tgz",
+      "integrity": "sha512-3lU/QMvW3VAgPwefBDSI90FY71ShuT7QxIna4sz5ksE7gVIUpNWe5/VjCiHroeyyTz9pIMlSE65V7nLJqq9Cmg=="
     },
     "boxen": {
       "version": "4.2.0",
diff --git a/package.json b/package.json
index 5393d6848d5..5510b6b9d10 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
     "url": "https://github.com/flutter/website.git"
   },
   "dependencies": {
-    "bootstrap-scss": "^4.6.1",
+    "bootstrap-scss": "^5.2.3",
     "diff2html-cli": "^5.2.4",
     "font-awesome": "^4.7.0",
     "superstatic": "^8.0.0",