diff --git a/src/types.ts b/src/types.ts
index 7ec77c0..47b882e 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -2,7 +2,11 @@ import { object, string, number, InferType } from "yup";
 
 export const reviewSchema = object({
   username: string().required(),
-  rating: number().positive().max(5).required(),
+  rating: number().positive().max(5).test(
+    "maxDigitsAfterDecimal",
+    "Rating must have at most 1 decimal place",
+    number => Number.isInteger(number! * 10)
+  ).required(),
   content: string(),
 });