diff --git a/package-lock.json b/package-lock.json
index 6ef5312..21441ee 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,6 +11,7 @@
       "dependencies": {
         "@types/nearest-color": "^0.4.1",
         "@types/p5": "^1.7.6",
+        "cococh": "^1.2.4",
         "color-name-list": "^10.22.0",
         "nearest-color": "^0.4.4",
         "p5": "^1.9.4"
@@ -3372,6 +3373,12 @@
         "node": ">= 0.12.0"
       }
     },
+    "node_modules/cococh": {
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/cococh/-/cococh-1.2.4.tgz",
+      "integrity": "sha512-ufkY6E40UgBIQTjsNKmwI99IPfsEYWFOZKELiKHZj60rIQH6NmDt7Jy7cpDlOxvdaPI8U4kcqbYZ3q3LmYQS3w==",
+      "license": "Apache-2.0"
+    },
     "node_modules/collect-v8-coverage": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/collect-v8-coverage/-/collect-v8-coverage-1.0.2.tgz",
diff --git a/package.json b/package.json
index 0fb7dfe..d1c293b 100644
--- a/package.json
+++ b/package.json
@@ -58,6 +58,7 @@
   "dependencies": {
     "@types/nearest-color": "^0.4.1",
     "@types/p5": "^1.7.6",
+    "cococh": "^1.2.4",
     "color-name-list": "^10.22.0",
     "nearest-color": "^0.4.4",
     "p5": "^1.9.4"