diff --git a/chapter03_linear_regression/chapter03.csproj b/chapter03_linear_regression/chapter03.csproj
index 4747521..6331bc6 100644
--- a/chapter03_linear_regression/chapter03.csproj
+++ b/chapter03_linear_regression/chapter03.csproj
@@ -7,7 +7,7 @@
 
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-    <PackageReference Include="Newtonsoft.Json" Version="12.0.2" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
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