diff --git a/package.json b/package.json
index 59bfa2b0..28181fa0 100644
--- a/package.json
+++ b/package.json
@@ -138,7 +138,7 @@
     "@eslint/eslintrc": "3.3.3",
     "@eslint/js": "9.39.2",
     "@hedgedoc/codemirror-5": "5.65.12",
-    "abcjs": "6.6.0",
+    "abcjs": "6.6.1",
     "babel-cli": "6.26.0",
     "babel-core": "6.26.3",
     "babel-loader": "7.1.5",
diff --git a/yarn.lock b/yarn.lock
index 632d4894..b4e3c135 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1505,7 +1505,7 @@ __metadata:
     "@node-saml/passport-saml": "npm:5.1.0"
     "@passport-next/passport-openid": "npm:1.0.0"
     Idle.Js: "git+https://github.com/shawnmclean/Idle.js#commit=2b57cc6e49d177b7ddce0cca00ef5cbe07453541"
-    abcjs: "npm:6.6.0"
+    abcjs: "npm:6.6.1"
     archiver: "npm:7.0.1"
     async: "npm:3.2.6"
     aws-sdk: "npm:2.1693.0"
@@ -1699,10 +1699,10 @@ __metadata:
   languageName: node
   linkType: hard
 
-"abcjs@npm:6.6.0":
-  version: 6.6.0
-  resolution: "abcjs@npm:6.6.0"
-  checksum: 10/9c260f13384224b4961e557fb573b1956c32ede6ea287772ce469916540b40f86deaa1d52bafd0c2de11ad0019716521eef9d5685225fe08b34856d514008143
+"abcjs@npm:6.6.1":
+  version: 6.6.1
+  resolution: "abcjs@npm:6.6.1"
+  checksum: 10/42547d1b851433941b5491b36e09859ac49a3e8c99710c5669db037a9a7754475484c75c42620ccbd06cb30554780d4e4730662ae16438549a0e79c7e0411875
   languageName: node
   linkType: hard