diff --git a/demo/lit/package-lock.json b/demo/lit/package-lock.json
index d5b1369..ebe8472 100644
--- a/demo/lit/package-lock.json
+++ b/demo/lit/package-lock.json
@@ -2236,18 +2236,6 @@
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@@ -2813,13 +2801,6 @@
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@@ -3655,16 +3636,6 @@
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-      "resolved": "https://registry.npmjs.org/good-listener/-/good-listener-1.2.2.tgz",
-      "integrity": "sha1-1TswzfkxPf+33JoNR3CWqm0UXFA=",
-      "dev": true,
-      "optional": true,
-      "requires": {
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@@ -4525,7 +4496,8 @@
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+      "dev": true
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     "lodash._reinterpolate": {
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@@ -5602,13 +5574,10 @@
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-      "resolved": "https://registry.npmjs.org/prismjs/-/prismjs-1.19.0.tgz",
-      "integrity": "sha512-IVFtbW9mCWm9eOIaEkNyo2Vl4NnEifis2GQ7/MLRG5TQe6t+4Sj9J5QWI9i3v+SS43uZBlCAOn+zYTVYQcPXJw==",
-      "dev": true,
-      "requires": {
-        "clipboard": "^2.0.0"
-      }
+      "version": "1.27.0",
+      "resolved": "https://registry.npmjs.org/prismjs/-/prismjs-1.27.0.tgz",
+      "integrity": "sha512-t13BGPUlFDR7wRB5kQDG4jjl7XeuH6jbJGt11JHPL96qwsEHNX2+68tFXqc1/k+/jALsbSWJKUOT/hcYAZ5LkA==",
+      "dev": true
     },
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@@ -6028,13 +5997,6 @@
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-      "resolved": "https://registry.npmjs.org/select/-/select-1.1.2.tgz",
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@@ -6744,13 +6706,6 @@
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-      "resolved": "https://registry.npmjs.org/tiny-emitter/-/tiny-emitter-2.1.0.tgz",
-      "integrity": "sha512-NB6Dk1A9xgQPMoGqC5CVXn123gWyte215ONT5Pp5a0yt4nlEoO1ZWeCwpncaekPHXO60i47ihFnZPiRPjRMq4Q==",
-      "dev": true,
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@@ -8068,6 +8023,7 @@
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+      "dev": true,
       "requires": {
         "lodash": "^4.17.15"
       }