diff --git a/los_tools/classes/sampling_distance_matrix.py b/los_tools/classes/sampling_distance_matrix.py
index a35b927..ef16015 100755
--- a/los_tools/classes/sampling_distance_matrix.py
+++ b/los_tools/classes/sampling_distance_matrix.py
@@ -150,6 +150,6 @@ def build_line(self, origin_point: QgsPoint, direction_point: QgsPoint) -> QgsLi
     def densified_line(self, start_point: QgsPoint, end_point: QgsPoint, sampling_row_index: int) -> QgsLineString:
         line = QgsGeometry.fromPolyline([start_point, end_point])
 
-        line = line.densifyByDistance(distance=np.nextafter(self.get_row_sampling_distance(sampling_row_index), np.Inf))
+        line = line.densifyByDistance(distance=np.nextafter(self.get_row_sampling_distance(sampling_row_index), np.inf))
 
         return QgsLineString([x for x in line.vertices()])
diff --git a/los_tools/metadata.txt b/los_tools/metadata.txt
index f600380..0487797 100755
--- a/los_tools/metadata.txt
+++ b/los_tools/metadata.txt
@@ -6,7 +6,7 @@
 name=LoS Tools
 qgisMinimumVersion=3.30
 description=This plugin creates and analyzes lines-of-sight (LoS) and also provides supporting tools.
-version=1.2.0
+version=1.2.1
 author=Jan Caha
 email=jan.caha@outlook.com
 
@@ -20,7 +20,9 @@ repository=https://github.com/JanCaha/qgis_los_tools
 
 hasProcessingProvider=yes
 # Uncomment the following line and add your changelog:
-changelog=1.2.0
+changelog=1.2.1
+    - fix bad use of numpy to avoid exception
+    <p>1.2.0
     - new tool to extract horizon lines at specific distance
     - minor fixes to gui tools (based on tests written for them)
     <p>1.1.2
diff --git a/los_tools/processing/tools/util_functions.py b/los_tools/processing/tools/util_functions.py
index 1accb07..10bee39 100644
--- a/los_tools/processing/tools/util_functions.py
+++ b/los_tools/processing/tools/util_functions.py
@@ -162,7 +162,7 @@ def segmentize_line(line: QgsGeometry, segment_length: float) -> QgsLineString:
 
     line_geom = QgsGeometry(line_extented)
 
-    line_geom = line_geom.densifyByDistance(distance=np.nextafter(float(segment_length), np.Inf))
+    line_geom = line_geom.densifyByDistance(distance=np.nextafter(float(segment_length), np.inf))
 
     line_res = QgsLineString([x for x in line_geom.vertices()])