diff --git a/package-lock.json b/package-lock.json
index 42e5fc8..144cbe8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -30,7 +30,7 @@
         "tsd": "^0.30.4"
       },
       "peerDependencies": {
-        "marked": "^12.0.0"
+        "marked": ">=4 <13"
       }
     },
     "node_modules/@aashutoshrathi/word-wrap": {
diff --git a/package.json b/package.json
index 4e969f5..9a767f0 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
   },
   "homepage": "https://github.com/markedjs/marked-mangle#readme",
   "peerDependencies": {
-    "marked": ">=4 <12"
+    "marked": ">=4 <13"
   },
   "devDependencies": {
     "@babel/core": "^7.23.9",