diff --git a/demo/package-lock.json b/demo/package-lock.json
index 9b51f9c..a1ea1b8 100644
--- a/demo/package-lock.json
+++ b/demo/package-lock.json
@@ -9,7 +9,7 @@
       "version": "0.1.0",
       "dependencies": {
         "core-js": "^3.6.5",
-        "d3-color": "^2.0.0",
+        "d3-color": "^3.1.0",
         "miserables": "^2.0.0",
         "ngraph.events": "^1.0.0",
         "ngraph.forcelayout": "^3.2.0",
@@ -5544,9 +5544,12 @@
       "dev": true
     },
     "node_modules/d3-color": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/d3-color/-/d3-color-2.0.0.tgz",
-      "integrity": "sha512-SPXi0TSKPD4g9tw0NMZFnR95XVgUZiBH+uUTqQuDu1OsE2zomHU7ho0FISciaPvosimixwHFl3WHLGabv6dDgQ=="
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/d3-color/-/d3-color-3.1.0.tgz",
+      "integrity": "sha512-zg/chbXyeBtMQ1LbD/WSoW2DpC3I0mpmPdW+ynRTj/x2DAWYrIY7qeZIHidozwV24m4iavr15lNwIwLxRmOxhA==",
+      "engines": {
+        "node": ">=12"
+      }
     },
     "node_modules/dashdash": {
       "version": "1.14.1",
@@ -19620,9 +19623,9 @@
       "dev": true
     },
     "d3-color": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/d3-color/-/d3-color-2.0.0.tgz",
-      "integrity": "sha512-SPXi0TSKPD4g9tw0NMZFnR95XVgUZiBH+uUTqQuDu1OsE2zomHU7ho0FISciaPvosimixwHFl3WHLGabv6dDgQ=="
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/d3-color/-/d3-color-3.1.0.tgz",
+      "integrity": "sha512-zg/chbXyeBtMQ1LbD/WSoW2DpC3I0mpmPdW+ynRTj/x2DAWYrIY7qeZIHidozwV24m4iavr15lNwIwLxRmOxhA=="
     },
     "dashdash": {
       "version": "1.14.1",
diff --git a/demo/package.json b/demo/package.json
index ac1f2f5..f63a4ca 100644
--- a/demo/package.json
+++ b/demo/package.json
@@ -10,7 +10,7 @@
   },
   "dependencies": {
     "core-js": "^3.6.5",
-    "d3-color": "^2.0.0",
+    "d3-color": "^3.1.0",
     "miserables": "^2.0.0",
     "ngraph.events": "^1.0.0",
     "ngraph.forcelayout": "^3.2.0",