diff --git a/ts/routes/graphs/reviews.ts b/ts/routes/graphs/reviews.ts
index 41b500917..ed0e07f8c 100644
--- a/ts/routes/graphs/reviews.ts
+++ b/ts/routes/graphs/reviews.ts
@@ -18,7 +18,6 @@ import {
     bin,
     cumsum,
     curveBasis,
-    interpolateBlues,
     interpolateGreens,
     interpolateOranges,
     interpolatePurples,