diff --git a/ABM/ABM.Core.UnitTests/ABM.Core.UnitTests.vbproj b/ABM/ABM.Core.UnitTests/ABM.Core.UnitTests.vbproj
index 26891365..682e4720 100644
--- a/ABM/ABM.Core.UnitTests/ABM.Core.UnitTests.vbproj
+++ b/ABM/ABM.Core.UnitTests/ABM.Core.UnitTests.vbproj
@@ -73,15 +73,15 @@
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.TestPlatform.CoreUtilities, Version=15.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
-      <HintPath>..\packages\Microsoft.TestPlatform.ObjectModel.18.4.0\lib\net462\Microsoft.TestPlatform.CoreUtilities.dll</HintPath>
+      <HintPath>..\packages\Microsoft.TestPlatform.ObjectModel.18.5.1\lib\net462\Microsoft.TestPlatform.CoreUtilities.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="Microsoft.TestPlatform.PlatformAbstractions, Version=15.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
-      <HintPath>..\packages\Microsoft.TestPlatform.ObjectModel.18.4.0\lib\net462\Microsoft.TestPlatform.PlatformAbstractions.dll</HintPath>
+      <HintPath>..\packages\Microsoft.TestPlatform.ObjectModel.18.5.1\lib\net462\Microsoft.TestPlatform.PlatformAbstractions.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="Microsoft.VisualStudio.TestPlatform.ObjectModel, Version=15.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
-      <HintPath>..\packages\Microsoft.TestPlatform.ObjectModel.18.4.0\lib\net462\Microsoft.VisualStudio.TestPlatform.ObjectModel.dll</HintPath>
+      <HintPath>..\packages\Microsoft.TestPlatform.ObjectModel.18.5.1\lib\net462\Microsoft.VisualStudio.TestPlatform.ObjectModel.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="System" />
@@ -89,8 +89,8 @@
       <HintPath>..\packages\System.Buffers.4.6.1\lib\net462\System.Buffers.dll</HintPath>
       <Private>True</Private>
     </Reference>
-    <Reference Include="System.Collections.Immutable, Version=10.0.0.6, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
-      <HintPath>..\packages\System.Collections.Immutable.10.0.6\lib\net462\System.Collections.Immutable.dll</HintPath>
+    <Reference Include="System.Collections.Immutable, Version=10.0.0.8, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
+      <HintPath>..\packages\System.Collections.Immutable.10.0.8\lib\net462\System.Collections.Immutable.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="System.Data" />
diff --git a/ABM/ABM.Core.UnitTests/packages.config b/ABM/ABM.Core.UnitTests/packages.config
index aaead7bb..966d4366 100644
--- a/ABM/ABM.Core.UnitTests/packages.config
+++ b/ABM/ABM.Core.UnitTests/packages.config
@@ -2,7 +2,7 @@
 <packages>
   <package id="Microsoft.TestPlatform.ObjectModel" version="18.4.0" targetFramework="net472" />
   <package id="System.Buffers" version="4.6.1" targetFramework="net472" />
-  <package id="System.Collections.Immutable" version="10.0.6" targetFramework="net472" />
+  <package id="System.Collections.Immutable" version="10.0.8" targetFramework="net472" />
   <package id="System.Memory" version="4.6.3" targetFramework="net472" />
   <package id="System.Numerics.Vectors" version="4.6.1" targetFramework="net472" />
   <package id="System.Reflection.Metadata" version="10.0.6" targetFramework="net472" />