diff --git a/TaskPaneAddIn/cs/packages.config b/TaskPaneAddIn/cs/packages.config
index 359fb92..825e546 100644
--- a/TaskPaneAddIn/cs/packages.config
+++ b/TaskPaneAddIn/cs/packages.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Newtonsoft.Json" version="12.0.3" targetFramework="net461" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net461" />
   <package id="Xarial.XCad" version="0.7.5" targetFramework="net461" />
   <package id="Xarial.XCad.SolidWorks" version="0.7.5" targetFramework="net461" />
   <package id="Xarial.XCad.SolidWorks.Interops" version="0.3.0" targetFramework="net461" />