diff --git a/swtest/kakao/2019kakao/duplicatedForTest/duplicatedForTest/duplicatedForTest.csproj b/swtest/kakao/2019kakao/duplicatedForTest/duplicatedForTest/duplicatedForTest.csproj
index 8e4f86b..ff85999 100644
--- a/swtest/kakao/2019kakao/duplicatedForTest/duplicatedForTest/duplicatedForTest.csproj
+++ b/swtest/kakao/2019kakao/duplicatedForTest/duplicatedForTest/duplicatedForTest.csproj
@@ -6,7 +6,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="12.0.2" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
   </ItemGroup>
 
 </Project>