diff --git a/kypo/sandbox_common_lib/pagination.py b/kypo/sandbox_common_lib/pagination.py
index 49aa7066bbcdb0801053f12d4ba00bdce4986288..213b43850833c06c06a37f87738950af30cce9bf 100644
--- a/kypo/sandbox_common_lib/pagination.py
+++ b/kypo/sandbox_common_lib/pagination.py
@@ -54,7 +54,7 @@ class PageNumberWithPageSizePagination(PageNumberPagination):
 
         if isinstance(queryset, QuerySet):
             sort_by_param = '-'+sort_by_param if order_param == "desc" else sort_by_param
-            queryset.order_by(sort_by_param)
+            queryset = queryset.order_by(sort_by_param)
         else:
             queryset = sorted(queryset, key=lambda item: item.get(sort_by_param, ''),
                               reverse=order_param == 'desc')
diff --git a/kypo/sandbox_instance_app/serializers.py b/kypo/sandbox_instance_app/serializers.py
index 3417a796784a10b0476889a78b513daf06fd2052..5b03ff753ed2d9a617cf66840f2e1c6df60e198d 100644
--- a/kypo/sandbox_instance_app/serializers.py
+++ b/kypo/sandbox_instance_app/serializers.py
@@ -272,9 +272,9 @@ class SandboxResourceSerializer(serializers.Serializer):
 
 
 class HardwareUsageSerializer(serializers.Serializer):
-    vcpu = serializers.DecimalField(decimal_places=3, max_digits=2)
-    ram = serializers.DecimalField(decimal_places=3, max_digits=2)
-    instances = serializers.DecimalField(decimal_places=3, max_digits=2)
-    network = serializers.DecimalField(decimal_places=3, max_digits=2)
-    subnet = serializers.DecimalField(decimal_places=3, max_digits=2)
-    port = serializers.DecimalField(decimal_places=3, max_digits=2)
+    vcpu = serializers.DecimalField(decimal_places=3, max_digits=7)
+    ram = serializers.DecimalField(decimal_places=3, max_digits=7)
+    instances = serializers.DecimalField(decimal_places=3, max_digits=7)
+    network = serializers.DecimalField(decimal_places=3, max_digits=7)
+    subnet = serializers.DecimalField(decimal_places=3, max_digits=7)
+    port = serializers.DecimalField(decimal_places=3, max_digits=7)