diff --git a/package-lock.json b/package-lock.json
index d246d58..c2d7517 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -504,11 +504,11 @@
       "integrity": "sha512-jnOD+/+dSrfTWYfSXBXlo5l5f0q1UuJo3tkbMDCYA2lKUYq79jaxqtGEvnRoh049nt1vdo1+45RinipU6FGY2g=="
     },
     "node_modules/@lit/reactive-element": {
-      "version": "1.6.3",
-      "resolved": "https://registry.npmjs.org/@lit/reactive-element/-/reactive-element-1.6.3.tgz",
-      "integrity": "sha512-QuTgnG52Poic7uM1AN5yJ09QMe0O28e10XzSvWDz02TJiiKee4stsiownEIadWm8nYzyDAyT+gKzUoZmiWQtsQ==",
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/@lit/reactive-element/-/reactive-element-2.0.0.tgz",
+      "integrity": "sha512-wn+2+uDcs62ROBmVAwssO4x5xue/uKD3MGGZOXL2sMxReTRIT0JXKyMXeu7gh0aJ4IJNEIG/3aOnUaQvM7BMzQ==",
       "dependencies": {
-        "@lit-labs/ssr-dom-shim": "^1.0.0"
+        "@lit-labs/ssr-dom-shim": "^1.1.2-pre.0"
       }
     },
     "node_modules/@lmdb/lmdb-darwin-arm64": {
@@ -5869,29 +5869,29 @@
       "dev": true
     },
     "node_modules/lit": {
-      "version": "2.7.6",
-      "resolved": "https://registry.npmjs.org/lit/-/lit-2.7.6.tgz",
-      "integrity": "sha512-1amFHA7t4VaaDe+vdQejSVBklwtH9svGoG6/dZi9JhxtJBBlqY5D1RV7iLUYY0trCqQc4NfhYYZilZiVHt7Hxg==",
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/lit/-/lit-3.0.0.tgz",
+      "integrity": "sha512-nQ0teRzU1Kdj++VdmttS2WvIen8M79wChJ6guRKIIym2M3Ansg3Adj9O6yuQh2IpjxiUXlNuS81WKlQ4iL3BmA==",
       "dependencies": {
-        "@lit/reactive-element": "^1.6.0",
-        "lit-element": "^3.3.0",
-        "lit-html": "^2.7.0"
+        "@lit/reactive-element": "^2.0.0",
+        "lit-element": "^4.0.0",
+        "lit-html": "^3.0.0"
       }
     },
     "node_modules/lit-element": {
-      "version": "3.3.3",
-      "resolved": "https://registry.npmjs.org/lit-element/-/lit-element-3.3.3.tgz",
-      "integrity": "sha512-XbeRxmTHubXENkV4h8RIPyr8lXc+Ff28rkcQzw3G6up2xg5E8Zu1IgOWIwBLEQsu3cOVFqdYwiVi0hv0SlpqUA==",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/lit-element/-/lit-element-4.0.0.tgz",
+      "integrity": "sha512-N6+f7XgusURHl69DUZU6sTBGlIN+9Ixfs3ykkNDfgfTkDYGGOWwHAYBhDqVswnFGyWgQYR2KiSpu4J76Kccs/A==",
       "dependencies": {
-        "@lit-labs/ssr-dom-shim": "^1.1.0",
-        "@lit/reactive-element": "^1.3.0",
-        "lit-html": "^2.8.0"
+        "@lit-labs/ssr-dom-shim": "^1.1.2-pre.0",
+        "@lit/reactive-element": "^2.0.0",
+        "lit-html": "^3.0.0"
       }
     },
     "node_modules/lit-html": {
-      "version": "2.8.0",
-      "resolved": "https://registry.npmjs.org/lit-html/-/lit-html-2.8.0.tgz",
-      "integrity": "sha512-o9t+MQM3P4y7M7yNzqAyjp7z+mQGa4NS4CxiyLqFPyFWyc4O+nodLrkrxSaCTrla6M5YOLaT3RpbbqjszB5g3Q==",
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/lit-html/-/lit-html-3.0.0.tgz",
+      "integrity": "sha512-DNJIE8dNY0dQF2Gs0sdMNUppMQT2/CvV4OVnSdg7BXAsGqkVwsE5bqQ04POfkYH5dBIuGnJYdFz5fYYyNnOxiA==",
       "dependencies": {
         "@types/trusted-types": "^2.0.2"
       }
@@ -8346,7 +8346,7 @@
     "projects/lit-ts": {
       "name": "maxgraph-ts-example-integrating-in-lit",
       "dependencies": {
-        "lit": "~2.7.6"
+        "lit": "~3.0.0"
       },
       "devDependencies": {
         "vite": "~4.4.11"
diff --git a/projects/lit-ts/package.json b/projects/lit-ts/package.json
index 490397e..a0edfe7 100644
--- a/projects/lit-ts/package.json
+++ b/projects/lit-ts/package.json
@@ -8,7 +8,7 @@
     "preview": "vite preview"
   },
   "dependencies": {
-    "lit": "~2.7.6"
+    "lit": "~3.0.0"
   },
   "devDependencies": {
     "vite": "~4.4.11"