diff --git a/docs/changelog.md b/docs/changelog.md
index bd4b0952..23eb1629 100644
--- a/docs/changelog.md
+++ b/docs/changelog.md
@@ -1,3 +1,7 @@
+### 0.5.2 <small>April 13, 2023</small>
+
+- Fixed [[#63](https://github.com/roboflow/supervision/pull/63)]: `LineZone.trigger` function expects 4 values instead of 5.
+
 ### 0.5.1 <small>April 12, 2023</small>
 
 - Fixed `Detections.__getitem__` method did not return mask for selected item.
diff --git a/supervision/__init__.py b/supervision/__init__.py
index cf2838e7..9f5524a4 100644
--- a/supervision/__init__.py
+++ b/supervision/__init__.py
@@ -1,4 +1,4 @@
-__version__ = "0.5.1"
+__version__ = "0.5.2"
 
 from supervision.annotation.voc import detections_to_voc_xml
 from supervision.detection.annotate import BoxAnnotator, MaskAnnotator
diff --git a/supervision/detection/core.py b/supervision/detection/core.py
index 0466856d..51a24e5b 100644
--- a/supervision/detection/core.py
+++ b/supervision/detection/core.py
@@ -319,9 +319,7 @@ class Detections:
         ):
             return Detections(
                 xyxy=self.xyxy[index],
-                mask=self.mask[index]
-                if self.mask is not None
-                else None,
+                mask=self.mask[index] if self.mask is not None else None,
                 confidence=self.confidence[index]
                 if self.confidence is not None
                 else None,