diff --git a/csfieldguide/package.json b/csfieldguide/package.json
index 5e43210a95..8247ff656d 100644
--- a/csfieldguide/package.json
+++ b/csfieldguide/package.json
@@ -24,7 +24,7 @@
         "gulp-imagemin": "5.0.3",
         "gulp-postcss": "9.0.0",
         "gulp-rename": "2.0.0",
-        "gulp-sass": "4.1.0",
+        "gulp-sass": "5.1.0",
         "gulp-sourcemaps": "3.0.0",
         "gulp-tap": "2.0.0",
         "gulp-terser": "2.0.1",