diff --git a/src/NzbDrone.Api.Test/NzbDrone.Api.Test.csproj b/src/NzbDrone.Api.Test/NzbDrone.Api.Test.csproj
index d620aaaad8..9d787542e1 100644
--- a/src/NzbDrone.Api.Test/NzbDrone.Api.Test.csproj
+++ b/src/NzbDrone.Api.Test/NzbDrone.Api.Test.csproj
@@ -48,8 +48,7 @@
     <Reference Include="FluentAssertions.Core, Version=4.19.0.0, Culture=neutral, PublicKeyToken=33f2691a05b67b6a, processorArchitecture=MSIL">
       <HintPath>..\packages\FluentAssertions.4.19.0\lib\net40\FluentAssertions.Core.dll</HintPath>
     </Reference>
-    <Reference Include="Moq, Version=4.2.1510.2205, Culture=neutral, PublicKeyToken=69f491c39445e920, processorArchitecture=MSIL">
-      <HintPath>..\packages\Moq.4.2.1510.2205\lib\net40\Moq.dll</HintPath>
+    <Reference Include="Moq, Version=4.0.10827.0, Culture=neutral, PublicKeyToken=69f491c39445e920, processorArchitecture=MSIL">
       <Private>True</Private>
     </Reference>
     <Reference Include="nunit.framework, Version=3.6.0.0, Culture=neutral, PublicKeyToken=2638cd05610744eb, processorArchitecture=MSIL">
diff --git a/src/NzbDrone.Api.Test/packages.config b/src/NzbDrone.Api.Test/packages.config
index 827124e05b..0913b64169 100644
--- a/src/NzbDrone.Api.Test/packages.config
+++ b/src/NzbDrone.Api.Test/packages.config
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="FluentAssertions" version="4.19.0" targetFramework="net40" />
-  <package id="Moq" version="4.2.1510.2205" targetFramework="net40" />
+  <package id="Moq" version="4.0.10827" targetFramework="net40" />
   <package id="NBuilder" version="4.0.0" targetFramework="net40" />
   <package id="NUnit" version="3.6.0" targetFramework="net40" />
 </packages>
\ No newline at end of file
diff --git a/src/NzbDrone.App.Test/NzbDrone.Host.Test.csproj b/src/NzbDrone.App.Test/NzbDrone.Host.Test.csproj
index b486bb5793..ef6babb9e2 100644
--- a/src/NzbDrone.App.Test/NzbDrone.Host.Test.csproj
+++ b/src/NzbDrone.App.Test/NzbDrone.Host.Test.csproj
@@ -47,8 +47,8 @@
     <Reference Include="FluentAssertions.Core, Version=4.19.0.0, Culture=neutral, PublicKeyToken=33f2691a05b67b6a, processorArchitecture=MSIL">
       <HintPath>..\packages\FluentAssertions.4.19.0\lib\net40\FluentAssertions.Core.dll</HintPath>
     </Reference>
-    <Reference Include="Moq, Version=4.2.1510.2205, Culture=neutral, PublicKeyToken=69f491c39445e920, processorArchitecture=MSIL">
-      <HintPath>..\packages\Moq.4.2.1510.2205\lib\net40\Moq.dll</HintPath>
+    <Reference Include="Moq, Version=4.0.10827.0, Culture=neutral, PublicKeyToken=69f491c39445e920, processorArchitecture=MSIL">
+      <HintPath>..\packages\Moq.4.0.10827\lib\NET40\Moq.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="NLog, Version=4.0.0.0, Culture=neutral, PublicKeyToken=5120e14c03d0593c, processorArchitecture=MSIL">
diff --git a/src/NzbDrone.App.Test/packages.config b/src/NzbDrone.App.Test/packages.config
index 6c4fe74099..f03ff8a84d 100644
--- a/src/NzbDrone.App.Test/packages.config
+++ b/src/NzbDrone.App.Test/packages.config
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="FluentAssertions" version="4.19.0" targetFramework="net40" />
-  <package id="Moq" version="4.2.1510.2205" targetFramework="net40" />
+  <package id="Moq" version="4.0.10827" targetFramework="net40" />
   <package id="NBuilder" version="4.0.0" targetFramework="net40" />
   <package id="NLog" version="4.4.12" targetFramework="net40" />
   <package id="NUnit" version="3.6.0" targetFramework="net40" />
diff --git a/src/NzbDrone.Common.Test/NzbDrone.Common.Test.csproj b/src/NzbDrone.Common.Test/NzbDrone.Common.Test.csproj
index a2e2118e8b..e07e5f30e4 100644
--- a/src/NzbDrone.Common.Test/NzbDrone.Common.Test.csproj
+++ b/src/NzbDrone.Common.Test/NzbDrone.Common.Test.csproj
@@ -43,8 +43,8 @@
     <Reference Include="FluentAssertions.Core, Version=4.19.0.0, Culture=neutral, PublicKeyToken=33f2691a05b67b6a, processorArchitecture=MSIL">
       <HintPath>..\packages\FluentAssertions.4.19.0\lib\net40\FluentAssertions.Core.dll</HintPath>
     </Reference>
-    <Reference Include="Moq, Version=4.2.1510.2205, Culture=neutral, PublicKeyToken=69f491c39445e920, processorArchitecture=MSIL">
-      <HintPath>..\packages\Moq.4.2.1510.2205\lib\net40\Moq.dll</HintPath>
+    <Reference Include="Moq, Version=4.0.10827.0, Culture=neutral, PublicKeyToken=69f491c39445e920, processorArchitecture=MSIL">
+      <HintPath>..\packages\Moq.4.0.10827\lib\NET40\Moq.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="NLog, Version=4.0.0.0, Culture=neutral, PublicKeyToken=5120e14c03d0593c, processorArchitecture=MSIL">
diff --git a/src/NzbDrone.Common.Test/packages.config b/src/NzbDrone.Common.Test/packages.config
index 33c5232b7c..b42db084c1 100644
--- a/src/NzbDrone.Common.Test/packages.config
+++ b/src/NzbDrone.Common.Test/packages.config
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="FluentAssertions" version="4.19.0" targetFramework="net40" />
-  <package id="Moq" version="4.2.1510.2205" targetFramework="net40" />
+  <package id="Moq" version="4.0.10827" targetFramework="net40" />
   <package id="NLog" version="4.4.12" targetFramework="net40" />
   <package id="NUnit" version="3.6.0" targetFramework="net40" />
 </packages>
\ No newline at end of file
diff --git a/src/NzbDrone.Core.Test/NzbDrone.Core.Test.csproj b/src/NzbDrone.Core.Test/NzbDrone.Core.Test.csproj
index 542f3ba20e..8e1822c1e1 100644
--- a/src/NzbDrone.Core.Test/NzbDrone.Core.Test.csproj
+++ b/src/NzbDrone.Core.Test/NzbDrone.Core.Test.csproj
@@ -77,8 +77,8 @@
       <HintPath>..\packages\Unity.2.1.505.2\lib\NET35\Microsoft.Practices.Unity.Configuration.dll</HintPath>
       <Private>True</Private>
     </Reference>
-    <Reference Include="Moq, Version=4.2.1510.2205, Culture=neutral, PublicKeyToken=69f491c39445e920, processorArchitecture=MSIL">
-      <HintPath>..\packages\Moq.4.2.1510.2205\lib\net40\Moq.dll</HintPath>
+    <Reference Include="Moq, Version=4.0.10827.0, Culture=neutral, PublicKeyToken=69f491c39445e920, processorArchitecture=MSIL">
+      <HintPath>..\packages\Moq.4.0.10827\lib\NET40\Moq.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="NCrunch.Framework, Version=3.2.0.3, Culture=neutral, PublicKeyToken=01d101bf6f3e0aea, processorArchitecture=MSIL">
diff --git a/src/NzbDrone.Core.Test/packages.config b/src/NzbDrone.Core.Test/packages.config
index 4d9364d16f..556a41eaf9 100644
--- a/src/NzbDrone.Core.Test/packages.config
+++ b/src/NzbDrone.Core.Test/packages.config
@@ -6,7 +6,7 @@
   <package id="FluentMigrator" version="1.6.2" targetFramework="net40" />
   <package id="FluentMigrator.Runner" version="1.6.2" targetFramework="net40" />
   <package id="FluentValidation" version="6.2.1.0" targetFramework="net40" />
-  <package id="Moq" version="4.2.1510.2205" targetFramework="net40" />
+  <package id="Moq" version="4.0.10827" targetFramework="net40" />
   <package id="NBuilder" version="4.0.0" targetFramework="net40" />
   <package id="Newtonsoft.Json" version="9.0.1" targetFramework="net40" />
   <package id="NLog" version="4.4.12" targetFramework="net40" />
diff --git a/src/NzbDrone.Integration.Test/NzbDrone.Integration.Test.csproj b/src/NzbDrone.Integration.Test/NzbDrone.Integration.Test.csproj
index 8cb0c9b457..5757f393b5 100644
--- a/src/NzbDrone.Integration.Test/NzbDrone.Integration.Test.csproj
+++ b/src/NzbDrone.Integration.Test/NzbDrone.Integration.Test.csproj
@@ -62,8 +62,8 @@
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\packages\Microsoft.Owin.Hosting.2.1.0\lib\net40\Microsoft.Owin.Hosting.dll</HintPath>
     </Reference>
-    <Reference Include="Moq, Version=4.2.1510.2205, Culture=neutral, PublicKeyToken=69f491c39445e920, processorArchitecture=MSIL">
-      <HintPath>..\packages\Moq.4.2.1510.2205\lib\net40\Moq.dll</HintPath>
+    <Reference Include="Moq, Version=4.0.10827.0, Culture=neutral, PublicKeyToken=69f491c39445e920, processorArchitecture=MSIL">
+      <HintPath>..\packages\Moq.4.0.10827\lib\NET40\Moq.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="Nancy, Version=1.4.2.0, Culture=neutral, processorArchitecture=MSIL">
diff --git a/src/NzbDrone.Integration.Test/packages.config b/src/NzbDrone.Integration.Test/packages.config
index df6cc5e064..3afe17966f 100644
--- a/src/NzbDrone.Integration.Test/packages.config
+++ b/src/NzbDrone.Integration.Test/packages.config
@@ -6,7 +6,7 @@
   <package id="Microsoft.Owin" version="2.1.0" targetFramework="net40" />
   <package id="Microsoft.Owin.Host.HttpListener" version="2.1.0" targetFramework="net40" />
   <package id="Microsoft.Owin.Hosting" version="2.1.0" targetFramework="net40" />
-  <package id="Moq" version="4.2.1510.2205" targetFramework="net40" />
+  <package id="Moq" version="4.0.10827" targetFramework="net40" />
   <package id="Nancy" version="1.4.3" targetFramework="net40" />
   <package id="Nancy.Owin" version="1.4.1" targetFramework="net40" />
   <package id="Newtonsoft.Json" version="9.0.1" targetFramework="net40" />
diff --git a/src/NzbDrone.Mono.Test/NzbDrone.Mono.Test.csproj b/src/NzbDrone.Mono.Test/NzbDrone.Mono.Test.csproj
index 93c1d1b150..9e78587a38 100644
--- a/src/NzbDrone.Mono.Test/NzbDrone.Mono.Test.csproj
+++ b/src/NzbDrone.Mono.Test/NzbDrone.Mono.Test.csproj
@@ -60,8 +60,8 @@
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\Libraries\Mono.Posix.dll</HintPath>
     </Reference>
-    <Reference Include="Moq, Version=4.2.1510.2205, Culture=neutral, PublicKeyToken=69f491c39445e920, processorArchitecture=MSIL">
-      <HintPath>..\packages\Moq.4.2.1510.2205\lib\net40\Moq.dll</HintPath>
+    <Reference Include="Moq, Version=4.0.10827.0, Culture=neutral, PublicKeyToken=69f491c39445e920, processorArchitecture=MSIL">
+      <HintPath>..\packages\Moq.4.0.10827\lib\NET40\Moq.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="nunit.framework, Version=3.6.0.0, Culture=neutral, PublicKeyToken=2638cd05610744eb, processorArchitecture=MSIL">
diff --git a/src/NzbDrone.Mono.Test/packages.config b/src/NzbDrone.Mono.Test/packages.config
index f904a7123d..337af9af9b 100644
--- a/src/NzbDrone.Mono.Test/packages.config
+++ b/src/NzbDrone.Mono.Test/packages.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="FluentAssertions" version="4.19.0" targetFramework="net40" />
-  <package id="Moq" version="4.2.1510.2205" targetFramework="net40" />
+  <package id="Moq" version="4.0.10827" targetFramework="net40" />
   <package id="NUnit" version="3.6.0" targetFramework="net40" />
 </packages>
\ No newline at end of file
diff --git a/src/NzbDrone.Test.Common/NzbDrone.Test.Common.csproj b/src/NzbDrone.Test.Common/NzbDrone.Test.Common.csproj
index d80c4a2054..46ea20cd68 100644
--- a/src/NzbDrone.Test.Common/NzbDrone.Test.Common.csproj
+++ b/src/NzbDrone.Test.Common/NzbDrone.Test.Common.csproj
@@ -46,8 +46,8 @@
     <Reference Include="FluentValidation, Version=6.2.1.0, Culture=neutral, processorArchitecture=MSIL">
       <HintPath>..\packages\FluentValidation.6.2.1.0\lib\portable-net40+sl50+wp80+win8+wpa81\FluentValidation.dll</HintPath>
     </Reference>
-    <Reference Include="Moq, Version=4.2.1510.2205, Culture=neutral, PublicKeyToken=69f491c39445e920, processorArchitecture=MSIL">
-      <HintPath>..\packages\Moq.4.2.1510.2205\lib\net40\Moq.dll</HintPath>
+    <Reference Include="Moq, Version=4.0.10827.0, Culture=neutral, PublicKeyToken=69f491c39445e920, processorArchitecture=MSIL">
+      <HintPath>..\packages\Moq.4.0.10827\lib\NET40\Moq.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="Newtonsoft.Json, Version=9.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
diff --git a/src/NzbDrone.Test.Common/packages.config b/src/NzbDrone.Test.Common/packages.config
index 116187a970..62f87656e3 100644
--- a/src/NzbDrone.Test.Common/packages.config
+++ b/src/NzbDrone.Test.Common/packages.config
@@ -3,7 +3,7 @@
   <package id="CommonServiceLocator" version="1.3" targetFramework="net40" />
   <package id="FluentAssertions" version="4.19.0" targetFramework="net40" />
   <package id="FluentValidation" version="6.2.1.0" targetFramework="net40" />
-  <package id="Moq" version="4.2.1510.2205" targetFramework="net40" />
+  <package id="Moq" version="4.0.10827" targetFramework="net40" />
   <package id="Newtonsoft.Json" version="9.0.1" targetFramework="net40" />
   <package id="NLog" version="4.4.12" targetFramework="net40" />
   <package id="NUnit" version="3.6.0" targetFramework="net40" />
diff --git a/src/NzbDrone.Update.Test/NzbDrone.Update.Test.csproj b/src/NzbDrone.Update.Test/NzbDrone.Update.Test.csproj
index 84a5914c62..301ebf3fdf 100644
--- a/src/NzbDrone.Update.Test/NzbDrone.Update.Test.csproj
+++ b/src/NzbDrone.Update.Test/NzbDrone.Update.Test.csproj
@@ -47,8 +47,8 @@
     <Reference Include="FluentAssertions.Core, Version=4.19.0.0, Culture=neutral, PublicKeyToken=33f2691a05b67b6a, processorArchitecture=MSIL">
       <HintPath>..\packages\FluentAssertions.4.19.0\lib\net40\FluentAssertions.Core.dll</HintPath>
     </Reference>
-    <Reference Include="Moq, Version=4.2.1510.2205, Culture=neutral, PublicKeyToken=69f491c39445e920, processorArchitecture=MSIL">
-      <HintPath>..\packages\Moq.4.2.1510.2205\lib\net40\Moq.dll</HintPath>
+    <Reference Include="Moq, Version=4.0.10827.0, Culture=neutral, PublicKeyToken=69f491c39445e920, processorArchitecture=MSIL">
+      <HintPath>..\packages\Moq.4.0.10827\lib\NET40\Moq.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="NLog, Version=4.0.0.0, Culture=neutral, PublicKeyToken=5120e14c03d0593c, processorArchitecture=MSIL">
diff --git a/src/NzbDrone.Update.Test/packages.config b/src/NzbDrone.Update.Test/packages.config
index 6c4fe74099..f03ff8a84d 100644
--- a/src/NzbDrone.Update.Test/packages.config
+++ b/src/NzbDrone.Update.Test/packages.config
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="FluentAssertions" version="4.19.0" targetFramework="net40" />
-  <package id="Moq" version="4.2.1510.2205" targetFramework="net40" />
+  <package id="Moq" version="4.0.10827" targetFramework="net40" />
   <package id="NBuilder" version="4.0.0" targetFramework="net40" />
   <package id="NLog" version="4.4.12" targetFramework="net40" />
   <package id="NUnit" version="3.6.0" targetFramework="net40" />