diff --git a/tutorial-part-four/package-lock.json b/tutorial-part-four/package-lock.json
index e46a7c2..406ce98 100644
--- a/tutorial-part-four/package-lock.json
+++ b/tutorial-part-four/package-lock.json
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 }
diff --git a/tutorial-part-four/package.json b/tutorial-part-four/package.json
index 9cf57ff..b29ea1e 100644
--- a/tutorial-part-four/package.json
+++ b/tutorial-part-four/package.json
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