diff --git a/backend/pom.xml b/backend/pom.xml
index a316ff0..2b36988 100644
--- a/backend/pom.xml
+++ b/backend/pom.xml
@@ -14,7 +14,7 @@
 		<maven.compiler.source>${java.version}</maven.compiler.source>
 		<maven.compiler.target>${java.version}</maven.compiler.target>
 		<querydsl.version>5.1.0</querydsl.version>
-		<revision>0.5.0</revision>
+		<revision>0.5.1</revision>
 	</properties>
 
 	<parent>
diff --git a/backend/src/main/java/de/champonthis/buntspecht/businesslogic/TurnoverManager.java b/backend/src/main/java/de/champonthis/buntspecht/businesslogic/TurnoverManager.java
index 8697949..0506f3d 100644
--- a/backend/src/main/java/de/champonthis/buntspecht/businesslogic/TurnoverManager.java
+++ b/backend/src/main/java/de/champonthis/buntspecht/businesslogic/TurnoverManager.java
@@ -9,9 +9,9 @@ import org.springframework.util.StringUtils;
 import com.querydsl.core.BooleanBuilder;
 import com.querydsl.core.QueryResults;
 import com.querydsl.core.Tuple;
+import com.querydsl.core.types.Expression;
 import com.querydsl.core.types.Order;
 import com.querydsl.core.types.OrderSpecifier;
-import com.querydsl.core.types.Path;
 import com.querydsl.core.types.Predicate;
 import com.querydsl.jpa.impl.JPAQuery;
 import com.querydsl.jpa.impl.JPAQueryFactory;
@@ -50,29 +50,38 @@ public class TurnoverManager {
 		Long total = query.clone().select(qTurnover.id.countDistinct()).fetchOne();
 
 		if (StringUtils.hasText(sortBy)) {
-			Path<? extends Comparable<?>> path = null;
+			Expression<? extends Comparable<?>> expression = null;
 			switch (sortBy) {
+				case "username":
+					expression = qTurnover.username;
+					break;
 				case "created":
-					path = qTurnover.created;
+					expression = qTurnover.created;
 					break;
 				case "dueDate":
-					path = qTurnover.dueDate;
+					expression = qTurnover.dueDate;
 					break;
 				case "updated":
-					path = qTurnover.updated;
+					expression = qTurnover.updated;
 					break;
 				case "customer":
-					path = qTurnover.customer;
+					expression = qTurnover.customer;
 					break;
 				case "price":
-					path = qTurnover.price;
+					expression = qTurnover.price;
 					break;
 				case "timeInvestment":
-					path = qTurnover.timeInvestment;
+					expression = qTurnover.timeInvestment;
+					break;
+				case "giftcardPrice":
+					expression = qTurnover.giftcardPrice;
+					break;
+				case "giftcardNumber":
+					expression = qTurnover.giftcardNumber;
 					break;
 			}
-			if (path != null) {
-				query.orderBy(new OrderSpecifier<>(descending ? Order.DESC : Order.ASC, path));
+			if (expression != null) {
+				query.orderBy(new OrderSpecifier<>(descending ? Order.DESC : Order.ASC, expression));
 			}
 		}
 
@@ -177,20 +186,23 @@ public class TurnoverManager {
 		Long total = query.clone().select(qTurnover.username.countDistinct()).fetchOne();
 
 		if (StringUtils.hasText(sortBy)) {
-			Path<? extends Comparable<?>> path = null;
+			Expression<? extends Comparable<?>> expression = null;
 			switch (sortBy) {
 				case "username":
-					path = qTurnover.username;
+					expression = qTurnover.username;
 					break;
 				case "price":
-					path = qTurnover.price;
+					expression = qTurnover.price.sum();
 					break;
 				case "timeInvestment":
-					path = qTurnover.timeInvestment;
+					expression = qTurnover.timeInvestment.sum();
+					break;
+				case "giftcardPrice":
+					expression = qTurnover.giftcardPrice.sum();
 					break;
 			}
-			if (path != null) {
-				query.orderBy(new OrderSpecifier<>(descending ? Order.DESC : Order.ASC, path));
+			if (expression != null) {
+				query.orderBy(new OrderSpecifier<>(descending ? Order.DESC : Order.ASC, expression));
 			}
 		}