diff --git a/BitlyApiV4/BitlyApiV4.csproj b/BitlyApiV4/BitlyApiV4.csproj
index cae7d5e..8339b65 100644
--- a/BitlyApiV4/BitlyApiV4.csproj
+++ b/BitlyApiV4/BitlyApiV4.csproj
@@ -23,7 +23,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="9.0.1" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/BitlyTestV4/packages.config b/BitlyTestV4/packages.config
index 614bf25..bad2dbe 100644
--- a/BitlyTestV4/packages.config
+++ b/BitlyTestV4/packages.config
@@ -2,5 +2,5 @@
 <packages>
   <package id="MSTest.TestAdapter" version="1.3.2" targetFramework="net472" />
   <package id="MSTest.TestFramework" version="1.3.2" targetFramework="net472" />
-  <package id="Newtonsoft.Json" version="12.0.3" targetFramework="net452" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net452" />
 </packages>
\ No newline at end of file