diff --git a/src/AdvancedCalculator.csproj b/src/AdvancedCalculator.csproj
index f1825ea..31139ad 100644
--- a/src/AdvancedCalculator.csproj
+++ b/src/AdvancedCalculator.csproj
@@ -39,9 +39,7 @@
   <ItemGroup>
     <Reference Include="csmic, Version=1.1.4.0, Culture=neutral, processorArchitecture=MSIL">
       <HintPath>packages\csmic.1.1.4\lib\net40\csmic.dll</HintPath>
-    </Reference>
-    <Reference Include="ICSharpCode.AvalonEdit, Version=5.0.3.0, Culture=neutral, PublicKeyToken=9cc39be672370310, processorArchitecture=MSIL">
-      <HintPath>packages\AvalonEdit.5.0.4\lib\Net40\ICSharpCode.AvalonEdit.dll</HintPath>
+      <EmbedInteropTypes>False</EmbedInteropTypes>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Data" />
diff --git a/src/packages.config b/src/packages.config
index 4183c27..111741e 100644
--- a/src/packages.config
+++ b/src/packages.config
@@ -1,5 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="AvalonEdit" version="5.0.4" targetFramework="net471" />
   <package id="csmic" version="1.1.4" targetFramework="net471" />
 </packages>
\ No newline at end of file