diff --git a/src/AnalysisPrograms/AnalysisPrograms.csproj b/src/AnalysisPrograms/AnalysisPrograms.csproj
index 227ffabe8..6e2c96c2e 100644
--- a/src/AnalysisPrograms/AnalysisPrograms.csproj
+++ b/src/AnalysisPrograms/AnalysisPrograms.csproj
@@ -24,7 +24,7 @@
     <Compile Include="..\AssemblyMetadata.Generated.cs" Link="Properties\AssemblyMetadata.Generated.cs" />
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="FSharp.Core" Version="6.0.5" />
+    <PackageReference Include="FSharp.Core" Version="6.0.7" />
     <PackageReference Include="McMaster.Extensions.CommandLineUtils" Version="3.1.0" />
     <PackageReference Include="SixLabors.ImageSharp" Version="2.1.2" />
     <PackageReference Include="SixLabors.ImageSharp.Drawing" Version="1.0.0-beta14" />
diff --git a/src/AudioAnalysisTools/Events/EventConverters.cs b/src/AudioAnalysisTools/Events/EventConverters.cs
index 679af248b..414ecfeda 100644
--- a/src/AudioAnalysisTools/Events/EventConverters.cs
+++ b/src/AudioAnalysisTools/Events/EventConverters.cs
@@ -28,7 +28,7 @@ public static SpectralEvent ConvertAcousticEventToSpectralEvent(this AcousticEve
         public static AcousticEvent ConvertSpectralEventToAcousticEvent(this SpectralEvent se)
         {
             var segmentStartOffset = TimeSpan.FromSeconds(se.SegmentStartSeconds);
-            double startTime = se.EventStartSeconds;
+            double startTime = se.EventStartSeconds - segmentStartOffset.TotalSeconds;
             double duration = se.EventDurationSeconds;
             double minHz = se.HighFrequencyHertz;
             double maxHz = se.HighFrequencyHertz;