diff --git a/WpfDrawing.Sample/packages.config b/WpfDrawing.Sample/packages.config
index dba78cf..093dcd2 100644
--- a/WpfDrawing.Sample/packages.config
+++ b/WpfDrawing.Sample/packages.config
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Newtonsoft.Json" version="12.0.3" targetFramework="net45" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net45" />
 </packages>
\ No newline at end of file
diff --git a/packages.config b/packages.config
index 8ab13a9..ce3dc38 100644
--- a/packages.config
+++ b/packages.config
@@ -1,4 +1,4 @@
 <?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" />
 </packages>
\ No newline at end of file