diff --git a/package.json b/package.json
index de14e4c..85e258d 100644
--- a/package.json
+++ b/package.json
@@ -53,6 +53,9 @@
     "postcss-selector-matches": "^2.0.0",
     "postcss-selector-not": "^2.0.0"
   },
+  "peerDependencies": {
+    "caniuse-db": "^1.0.30000652"
+  },
   "devDependencies": {
     "babel-cli": "^6.6.5",
     "babel-core": "^6.7.2",
diff --git a/src/features-activation-map.js b/src/features-activation-map.js
index e92e585..aaf1a2c 100644
--- a/src/features-activation-map.js
+++ b/src/features-activation-map.js
@@ -14,8 +14,7 @@ export default {
   // mediaQueriesRange: [ null ],
   // customSelectors: [ null ],
   attributeCaseInsensitive: [ "css-case-insensitive" ],
-  // @todo wait https://github.com/Fyrd/caniuse/issues/1271
-  // colorRebeccapurple: [ null ],
+  colorRebeccapurple: [ "css-rebeccapurple" ],
   // colorHsl: [ null ],
   // colorHwb: [ null ],
   // colorRgb: [ null ],