diff --git a/client/src/Zyborg.Vault.MockServer/Zyborg.Vault.MockServer.csproj b/client/src/Zyborg.Vault.MockServer/Zyborg.Vault.MockServer.csproj
index 818ed59..470323c 100644
--- a/client/src/Zyborg.Vault.MockServer/Zyborg.Vault.MockServer.csproj
+++ b/client/src/Zyborg.Vault.MockServer/Zyborg.Vault.MockServer.csproj
@@ -17,7 +17,7 @@
     <PackageReference Include="Microsoft.AspNetCore.All" Version="2.0.9" />
     <PackageReference Include="Microsoft.AspNetCore.Buffering" Version="0.2.2" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="2.0.0" />
-    <PackageReference Include="Newtonsoft.Json" Version="10.0.3" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
     <PackageReference Include="Zyborg.Security.Cryptography.HashiCorpShamir" Version="1.0.0" />
   </ItemGroup>
 
diff --git a/client/src/Zyborg.Vault/Zyborg.Vault.csproj b/client/src/Zyborg.Vault/Zyborg.Vault.csproj
index bfae2d4..2230c68 100644
--- a/client/src/Zyborg.Vault/Zyborg.Vault.csproj
+++ b/client/src/Zyborg.Vault/Zyborg.Vault.csproj
@@ -5,7 +5,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="10.0.3" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
   </ItemGroup>
 
 </Project>