diff --git a/.bundlewatch.config.json b/.bundlewatch.config.json
index 7cab49f398..b89e0207b7 100644
--- a/.bundlewatch.config.json
+++ b/.bundlewatch.config.json
@@ -30,7 +30,7 @@
     },
     {
       "path": "./dist/css/bootstrap.min.css",
-      "maxSize": "21 kB"
+      "maxSize": "21.5 kB"
     },
     {
       "path": "./dist/js/bootstrap.bundle.js",