diff --git a/OutlookSwissPTTimetable/OutlookSwissPTTimetable.csproj b/OutlookSwissPTTimetable/OutlookSwissPTTimetable.csproj
index 8a5f37c..abfdcdb 100644
--- a/OutlookSwissPTTimetable/OutlookSwissPTTimetable.csproj
+++ b/OutlookSwissPTTimetable/OutlookSwissPTTimetable.csproj
@@ -132,8 +132,8 @@
     <Reference Include="MahApps.Metro.IconPacks.Material, Version=2.3.0.4, Culture=neutral, processorArchitecture=MSIL">
       <HintPath>..\packages\MahApps.Metro.IconPacks.Material.2.3.0\lib\net46\MahApps.Metro.IconPacks.Material.dll</HintPath>
     </Reference>
-    <Reference Include="Newtonsoft.Json, Version=11.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
-      <HintPath>..\packages\Newtonsoft.Json.11.0.2\lib\net45\Newtonsoft.Json.dll</HintPath>
+    <Reference Include="Newtonsoft.Json, Version=12.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
+      <HintPath>..\packages\Newtonsoft.Json.12.0.2\lib\net45\Newtonsoft.Json.dll</HintPath>
     </Reference>
     <Reference Include="PresentationCore" />
     <Reference Include="PresentationFramework" />
@@ -280,7 +280,7 @@
     </ManifestKeyFile>
   </PropertyGroup>
   <PropertyGroup>
-    <ManifestCertificateThumbprint>1491DBAF8918A75EA646CE7E4D38CC866D26221A</ManifestCertificateThumbprint>
+    <ManifestCertificateThumbprint>E350EBDF6B48BBA0EABB3C612524D6FEA7AD10B6</ManifestCertificateThumbprint>
   </PropertyGroup>
   <PropertyGroup>
     <SignAssembly>false</SignAssembly>
diff --git a/OutlookSwissPTTimetable/packages.config b/OutlookSwissPTTimetable/packages.config
index 9576e3a..60d79a1 100644
--- a/OutlookSwissPTTimetable/packages.config
+++ b/OutlookSwissPTTimetable/packages.config
@@ -3,5 +3,5 @@
   <package id="ControlzEx" version="3.0.2.4" targetFramework="net461" />
   <package id="MahApps.Metro" version="1.6.5" targetFramework="net461" />
   <package id="MahApps.Metro.IconPacks.Material" version="2.3.0" targetFramework="net461" />
-  <package id="Newtonsoft.Json" version="11.0.2" targetFramework="net461" />
+  <package id="Newtonsoft.Json" version="12.0.2" targetFramework="net461" />
 </packages>
\ No newline at end of file