diff --git a/SPCViewer.Core/SPCViewer.Core.csproj b/SPCViewer.Core/SPCViewer.Core.csproj
index dd7f98d..fb5e04e 100644
--- a/SPCViewer.Core/SPCViewer.Core.csproj
+++ b/SPCViewer.Core/SPCViewer.Core.csproj
@@ -6,7 +6,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="ChemSharp.Spectroscopy" Version="1.0.4" />
+    <PackageReference Include="ChemSharp.Spectroscopy" Version="2.0.0" />
     <PackageReference Include="ChemSharp.UnitConversion" Version="1.0.4" />
     <PackageReference Include="ChemSharp" Version="1.0.4" />
     <PackageReference Include="JensKrumsieck.TinyMVVM" Version="1.0.0" />
diff --git a/SPCViewer.Test/SPCViewer.Test.csproj b/SPCViewer.Test/SPCViewer.Test.csproj
index e5ea26b..2cbee42 100644
--- a/SPCViewer.Test/SPCViewer.Test.csproj
+++ b/SPCViewer.Test/SPCViewer.Test.csproj
@@ -6,7 +6,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="ChemSharp.Spectroscopy" Version="1.0.4" />
+    <PackageReference Include="ChemSharp.Spectroscopy" Version="2.0.0" />
     <PackageReference Include="ChemSharp" Version="1.0.4" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.9.4" />
     <PackageReference Include="MSTest.TestAdapter" Version="2.2.3" />
diff --git a/SPCViewer.ViewModel/SPCViewer.ViewModel.csproj b/SPCViewer.ViewModel/SPCViewer.ViewModel.csproj
index af90767..97e3f5a 100644
--- a/SPCViewer.ViewModel/SPCViewer.ViewModel.csproj
+++ b/SPCViewer.ViewModel/SPCViewer.ViewModel.csproj
@@ -6,7 +6,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="ChemSharp.Spectroscopy" Version="1.0.4" />
+    <PackageReference Include="ChemSharp.Spectroscopy" Version="2.0.0" />
     <PackageReference Include="ChemSharp" Version="1.0.4" />
     <PackageReference Include="JensKrumsieck.TinyMVVM" Version="1.0.0" />
     <PackageReference Include="OxyPlot.Core" Version="2.1.0-Preview1" />