diff --git a/package-lock.json b/package-lock.json
index 522515c..d7b5335 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -30,9 +30,18 @@
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+      "dev": true,
+      "requires": {
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+    "@types/jest-diff": {
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     "@types/node": {