diff --git a/Directory.Build.props b/Directory.Build.props
index ad3cd86..d12448f 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -13,7 +13,7 @@
     <PackageLicenseFile>LICENSE</PackageLicenseFile>
     <UseArtifactsOutput>true</UseArtifactsOutput>
     <PackageIcon>icon.png</PackageIcon>
-    <VersionPrefix>0.3.0</VersionPrefix>
+    <VersionPrefix>0.4.0</VersionPrefix>
     <VersionSuffix></VersionSuffix>
     <LangVersion>10.0</LangVersion>
     <Features>strict</Features>
diff --git a/OpenEphys.Onix1/TS4231V1PositionDataFrame.cs b/OpenEphys.Onix1/TS4231V1PositionDataFrame.cs
index ed74822..db629c3 100644
--- a/OpenEphys.Onix1/TS4231V1PositionDataFrame.cs
+++ b/OpenEphys.Onix1/TS4231V1PositionDataFrame.cs
@@ -39,8 +39,8 @@ public TS4231V1PositionDataFrame(ulong clock, ulong hubClock, int sensorIndex, V
         public int SensorIndex { get; }
 
         /// <summary>
-        /// Gets rhe 3D position of the photodiode connected to the TS4231[<see cref="SensorIndex"/>] sensor with units determined by
-        /// <see cref="TS4231V1PositionData.P"/> and <see cref="TS4231V1PositionData.Q"/>.
+        /// Gets the 3D position of the photodiode connected to the TS4231 receiver with index <see cref="SensorIndex"/> 
+        /// in units determined by <see cref="TS4231V1PositionData.P"/> and <see cref="TS4231V1PositionData.Q"/>.
         /// </summary>
         public Vector3 Position { get; }
     }