diff --git a/demos/abstract-class-injection-token-provided-in-angular9/package-lock.json b/demos/abstract-class-injection-token-provided-in-angular9/package-lock.json
index 937463e6d..9b37329c9 100644
--- a/demos/abstract-class-injection-token-provided-in-angular9/package-lock.json
+++ b/demos/abstract-class-injection-token-provided-in-angular9/package-lock.json
@@ -6199,9 +6199,9 @@
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@@ -10566,12 +10566,6 @@
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@@ -11473,12 +11467,6 @@
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