diff --git a/frontend/benefit/handler/src/components/applicationForm/reviewChanges/ReviewEditChanges.tsx b/frontend/benefit/handler/src/components/applicationForm/reviewChanges/ReviewEditChanges.tsx
index 12d5a91734..ca77bcc929 100644
--- a/frontend/benefit/handler/src/components/applicationForm/reviewChanges/ReviewEditChanges.tsx
+++ b/frontend/benefit/handler/src/components/applicationForm/reviewChanges/ReviewEditChanges.tsx
@@ -59,9 +59,7 @@ const ReviewEditChanges: React.FC<ReviewEditChangesProps> = ({
   const [changes, setChanges] = useState<Difference[]>([]);
 
   useEffect(() => {
-    // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
     const diff: Difference[] =
-      // eslint-disable-next-line @typescript-eslint/no-unsafe-call
       deepDiff(initialValues, currentValues, (path: string[], key: string) =>
         getDiffPrefilter(path, key, requiredKeys)
       ) || [];
diff --git a/frontend/shared/src/types/deep-diff.d.ts b/frontend/shared/src/types/deep-diff.d.ts
new file mode 100644
index 0000000000..4db754da70
--- /dev/null
+++ b/frontend/shared/src/types/deep-diff.d.ts
@@ -0,0 +1,15 @@
+declare module 'deep-diff' {
+  export type Difference = {
+    lhs: string | number;
+    rhs: string | number;
+    path: string[];
+  };
+
+  export function deepDiff(
+    lhs: Record<unknown, unknown>,
+    rhs: Record<unknown, unknown>,
+    prefilter?: (path: string[], key: string) => boolean
+  ): Difference[];
+
+  export default deepDiff;
+}