diff --git a/build.gradle b/build.gradle
index ae3fab0d6..ee26b7160 100644
--- a/build.gradle
+++ b/build.gradle
@@ -53,7 +53,7 @@ repositories {
 dependencies {
 
   //	 ie³ power system utils
-  implementation 'com.github.ie3-institute:PowerSystemUtils:2.2'
+  implementation 'com.github.ie3-institute:PowerSystemUtils:2.2.1'
 
   implementation 'tech.units:indriya:2.2'
 
diff --git a/src/main/java/edu/ie3/datamodel/io/source/IdCoordinateSource.java b/src/main/java/edu/ie3/datamodel/io/source/IdCoordinateSource.java
index 560b2a909..33e0daf58 100644
--- a/src/main/java/edu/ie3/datamodel/io/source/IdCoordinateSource.java
+++ b/src/main/java/edu/ie3/datamodel/io/source/IdCoordinateSource.java
@@ -95,7 +95,7 @@ List<CoordinateDistance> getClosestCoordinates(
   default List<CoordinateDistance> calculateCoordinateDistances(
       Point coordinate, int n, Collection<Point> coordinates) {
     if (coordinates != null && !coordinates.isEmpty()) {
-      SortedSet<CoordinateDistance> sortedDistances =
+      List<CoordinateDistance> sortedDistances =
           GeoUtils.calcOrderedCoordinateDistances(coordinate, coordinates);
       return restrictToBoundingBox(coordinate, sortedDistances, n);
     } else {