diff --git a/source/Loggly.Tests/Loggly.Tests.csproj b/source/Loggly.Tests/Loggly.Tests.csproj
index 9be19a4..59a7dcb 100644
--- a/source/Loggly.Tests/Loggly.Tests.csproj
+++ b/source/Loggly.Tests/Loggly.Tests.csproj
@@ -31,6 +31,10 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
+    <Reference Include="Castle.Core, Version=3.3.0.0, Culture=neutral, PublicKeyToken=407dd0808d44fbdc, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\Castle.Core.3.3.3\lib\net45\Castle.Core.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="Mono.Cecil, Version=0.9.6.0, Culture=neutral, PublicKeyToken=0738eb9f132ed756, processorArchitecture=MSIL">
       <HintPath>..\..\packages\NUnit3TestAdapter.3.4.1\lib\Mono.Cecil.dll</HintPath>
       <Private>True</Private>
@@ -47,8 +51,9 @@
       <HintPath>..\..\packages\NUnit3TestAdapter.3.4.1\lib\Mono.Cecil.Rocks.dll</HintPath>
       <Private>True</Private>
     </Reference>
-    <Reference Include="Moq">
-      <HintPath>..\..\packages\Moq.4.2.1409.1722\lib\net40\Moq.dll</HintPath>
+    <Reference Include="Moq, Version=4.6.38.0, Culture=neutral, PublicKeyToken=69f491c39445e920, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\Moq.4.6.38-alpha\lib\net45\Moq.dll</HintPath>
+      <Private>True</Private>
     </Reference>
     <Reference Include="nunit.engine, Version=3.4.1.0, Culture=neutral, PublicKeyToken=2638cd05610744eb, processorArchitecture=MSIL">
       <HintPath>..\..\packages\NUnit3TestAdapter.3.4.1\lib\nunit.engine.dll</HintPath>
diff --git a/source/Loggly.Tests/packages.config b/source/Loggly.Tests/packages.config
index 65255b1..8e49855 100644
--- a/source/Loggly.Tests/packages.config
+++ b/source/Loggly.Tests/packages.config
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Moq" version="4.2.1409.1722" targetFramework="net451" />
+  <package id="Castle.Core" version="3.3.3" targetFramework="net451" />
+  <package id="Moq" version="4.6.38-alpha" targetFramework="net451" />
   <package id="NUnit" version="3.4.1" targetFramework="net451" />
   <package id="NUnit.ConsoleRunner" version="3.4.1" targetFramework="net451" />
   <package id="NUnit.Extension.NUnitProjectLoader" version="3.4.1" targetFramework="net451" />
diff --git a/source/NetStandard/Loggly.Tests/project.json b/source/NetStandard/Loggly.Tests/project.json
index e01100c..75639f4 100644
--- a/source/NetStandard/Loggly.Tests/project.json
+++ b/source/NetStandard/Loggly.Tests/project.json
@@ -8,9 +8,9 @@
   "testRunner": "nunit",
   "dependencies": {
     "Loggly": { "target": "project", "version": "" },
-    "Moq": "4.6.36-alpha",
     "NUnit": "3.4.1",
-    "dotnet-test-nunit": "3.4.0-beta-2"
+    "dotnet-test-nunit": "3.4.0-beta-2",
+    "Moq": "4.6.38-alpha"
   },
   "frameworks": {
     "netcoreapp1.0": {