diff --git a/modules/swagger-codegen/src/main/resources/nancyfx/Project.mustache b/modules/swagger-codegen/src/main/resources/nancyfx/Project.mustache
index c4a06b60070..8ff5398633d 100644
--- a/modules/swagger-codegen/src/main/resources/nancyfx/Project.mustache
+++ b/modules/swagger-codegen/src/main/resources/nancyfx/Project.mustache
@@ -39,8 +39,8 @@
         <DocumentationFile>bin\Release\{{packageName}}.XML</DocumentationFile>
     </PropertyGroup>
     <ItemGroup>
-        <Reference Include="Nancy, Version=1.4.1.0, Culture=neutral, processorArchitecture=MSIL">
-            <HintPath>..\..\packages\Nancy.1.4.1\lib\net40\Nancy.dll</HintPath>
+        <Reference Include="Nancy, Version=1.4.2.0, Culture=neutral, processorArchitecture=MSIL">
+            <HintPath>..\..\packages\Nancy.1.4.3\lib\net40\Nancy.dll</HintPath>
             <Private>True</Private>
         </Reference>
         <Reference Include="NodaTime, Version=1.3.0.0, Culture=neutral, PublicKeyToken=4226afe0d9b296d1, processorArchitecture=MSIL">
diff --git a/modules/swagger-codegen/src/main/resources/nancyfx/packages.config.mustache b/modules/swagger-codegen/src/main/resources/nancyfx/packages.config.mustache
index 58198276a42..c511c50acc8 100644
--- a/modules/swagger-codegen/src/main/resources/nancyfx/packages.config.mustache
+++ b/modules/swagger-codegen/src/main/resources/nancyfx/packages.config.mustache
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-    <package id="Nancy" version="1.4.1" targetFramework="net45" />
+    <package id="Nancy" version="1.4.3" targetFramework="net45" />
     <package id="NodaTime" version="1.3.1" targetFramework="net45" />
     <package id="Sharpility" version="1.2.2" targetFramework="net45" />
     <package id="System.Collections.Immutable" version="1.1.37" targetFramework="net45" />
diff --git a/samples/server/petstore/nancyfx/IO.Swagger.sln b/samples/server/petstore/nancyfx/IO.Swagger.sln
index 09301395de7..38fb0ef476a 100644
--- a/samples/server/petstore/nancyfx/IO.Swagger.sln
+++ b/samples/server/petstore/nancyfx/IO.Swagger.sln
@@ -2,7 +2,7 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 2012
 VisualStudioVersion = 12.0.0.0
 MinimumVisualStudioVersion = 10.0.0.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "IO.Swagger", "src\IO.Swagger\IO.Swagger.csproj", "{3B55ED13-A471-44B1-A8D5-C158723C0A0C}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "IO.Swagger", "src\IO.Swagger\IO.Swagger.csproj", "{9A5C2190-C960-4808-93CB-8721C1022F9B}"
 EndProject
 Global
 GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -10,10 +10,10 @@ Debug|Any CPU = Debug|Any CPU
 Release|Any CPU = Release|Any CPU
 EndGlobalSection
 GlobalSection(ProjectConfigurationPlatforms) = postSolution
-{3B55ED13-A471-44B1-A8D5-C158723C0A0C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-{3B55ED13-A471-44B1-A8D5-C158723C0A0C}.Debug|Any CPU.Build.0 = Debug|Any CPU
-{3B55ED13-A471-44B1-A8D5-C158723C0A0C}.Release|Any CPU.ActiveCfg = Release|Any CPU
-{3B55ED13-A471-44B1-A8D5-C158723C0A0C}.Release|Any CPU.Build.0 = Release|Any CPU
+{9A5C2190-C960-4808-93CB-8721C1022F9B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+{9A5C2190-C960-4808-93CB-8721C1022F9B}.Debug|Any CPU.Build.0 = Debug|Any CPU
+{9A5C2190-C960-4808-93CB-8721C1022F9B}.Release|Any CPU.ActiveCfg = Release|Any CPU
+{9A5C2190-C960-4808-93CB-8721C1022F9B}.Release|Any CPU.Build.0 = Release|Any CPU
 {19F1DEBC-DE5E-4517-8062-F000CD499087}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 {19F1DEBC-DE5E-4517-8062-F000CD499087}.Debug|Any CPU.Build.0 = Debug|Any CPU
 {19F1DEBC-DE5E-4517-8062-F000CD499087}.Release|Any CPU.ActiveCfg = Release|Any CPU
diff --git a/samples/server/petstore/nancyfx/src/IO.Swagger/IO.Swagger.csproj b/samples/server/petstore/nancyfx/src/IO.Swagger/IO.Swagger.csproj
index a103786b912..8bccfa94485 100644
--- a/samples/server/petstore/nancyfx/src/IO.Swagger/IO.Swagger.csproj
+++ b/samples/server/petstore/nancyfx/src/IO.Swagger/IO.Swagger.csproj
@@ -3,7 +3,7 @@
     <PropertyGroup>
         <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
         <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
-        <ProjectGuid>{3B55ED13-A471-44B1-A8D5-C158723C0A0C}</ProjectGuid>
+        <ProjectGuid>{9A5C2190-C960-4808-93CB-8721C1022F9B}</ProjectGuid>
         <OutputType>Library</OutputType>
         <AppDesignerFolder>Properties</AppDesignerFolder>
         <RootNamespace>IO.Swagger.v2</RootNamespace>
@@ -31,8 +31,8 @@
         <DocumentationFile>bin\Release\IO.Swagger.XML</DocumentationFile>
     </PropertyGroup>
     <ItemGroup>
-        <Reference Include="Nancy, Version=1.4.1.0, Culture=neutral, processorArchitecture=MSIL">
-            <HintPath>..\..\packages\Nancy.1.4.1\lib\net40\Nancy.dll</HintPath>
+        <Reference Include="Nancy, Version=1.4.2.0, Culture=neutral, processorArchitecture=MSIL">
+            <HintPath>..\..\packages\Nancy.1.4.3\lib\net40\Nancy.dll</HintPath>
             <Private>True</Private>
         </Reference>
         <Reference Include="NodaTime, Version=1.3.0.0, Culture=neutral, PublicKeyToken=4226afe0d9b296d1, processorArchitecture=MSIL">
diff --git a/samples/server/petstore/nancyfx/src/IO.Swagger/packages.config b/samples/server/petstore/nancyfx/src/IO.Swagger/packages.config
index 2575d1b4d77..e3401566e5d 100644
--- a/samples/server/petstore/nancyfx/src/IO.Swagger/packages.config
+++ b/samples/server/petstore/nancyfx/src/IO.Swagger/packages.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-    <package id="Nancy" version="1.4.1" targetFramework="net45" />
+    <package id="Nancy" version="1.4.3" targetFramework="net45" />
     <package id="NodaTime" version="1.3.1" targetFramework="net45" />
     <package id="Sharpility" version="1.2.2" targetFramework="net45" />
     <package id="System.Collections.Immutable" version="1.1.37" targetFramework="net45" />