diff --git a/package-exclude.json b/package-exclude.json
index 85e5cc306d0a..85cfced2199b 100644
--- a/package-exclude.json
+++ b/package-exclude.json
@@ -31,7 +31,9 @@
         "webpack-bundle-analyzer",
         "webpack-dev-server",
         "webpack-dev-server-without-h2",
-        "tabbable"
+        "tabbable",
+        "@adobe/css-tools",
+	"sass"
     ],
     "EXCLUDE_NPM_PREFIXES": [
         "@babel/eslint-",
diff --git a/package.json b/package.json
index 150cb00b4e88..58c61c3f3b6c 100644
--- a/package.json
+++ b/package.json
@@ -31,6 +31,7 @@
     "react-intl": "^2.8.0"
   },
   "devDependencies": {
+    "@adobe/css-tools": "~4.2.0",
     "@babel/core": "^7.7.0",
     "@theforeman/builder": "^10.1.0",
     "@theforeman/eslint-plugin-foreman": "^10.1.0",