diff --git a/package-lock.json b/package-lock.json
index f10c258..76b7af2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,7 @@
       "version": "3.1.2",
       "license": "MIT",
       "dependencies": {
-        "inject-markdown": "^3.1.4"
+        "inject-markdown": "^4.0.0"
       },
       "bin": {
         "inject-markdown-cli": "index.js"
@@ -246,12 +246,12 @@
       }
     },
     "node_modules/commander": {
-      "version": "12.1.0",
-      "resolved": "https://registry.npmjs.org/commander/-/commander-12.1.0.tgz",
-      "integrity": "sha512-Vw8qHK3bZM9y/P10u3Vib8o/DdkvA2OtPtZvD871QKjy74Wj1WSKFILMPRPSdUSx5RFK1arlJzEtA4PkFgnbuA==",
+      "version": "14.0.2",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-14.0.2.tgz",
+      "integrity": "sha512-TywoWNNRbhoD0BXs1P3ZEScW8W5iKrnbithIl0YH+uCmBd0QpPOA8yc82DS3BIE5Ma6FnBVUsJ7wVUDz4dvOWQ==",
       "license": "MIT",
       "engines": {
-        "node": ">=18"
+        "node": ">=20"
       }
     },
     "node_modules/data-uri-to-buffer": {
@@ -483,17 +483,17 @@
       }
     },
     "node_modules/inject-markdown": {
-      "version": "3.1.4",
-      "resolved": "https://registry.npmjs.org/inject-markdown/-/inject-markdown-3.1.4.tgz",
-      "integrity": "sha512-PKn0pdzF283r5HQI0czE51dozVw3dui5v9Et5cSBFezgMnbsq+J74y1hlAPcgNvws9yt+QIUspY39LT2FHDqlg==",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/inject-markdown/-/inject-markdown-4.0.0.tgz",
+      "integrity": "sha512-22LnlffSjyDEXWkjHIKLJcLFQXV7CVf/QC58rRkVROQNml7M1MW0L8wfmpQyp8YxgtOOBVDk06ki9n7QeeB4bg==",
       "license": "MIT",
       "dependencies": {
-        "chalk": "^5.3.0",
-        "commander": "^12.1.0",
-        "globby": "^14.0.2",
+        "chalk": "^5.4.1",
+        "commander": "^14.0.0",
+        "globby": "^14.1.0",
         "node-fetch": "^3.3.2",
         "remark": "^15.0.1",
-        "remark-gfm": "^4.0.0",
+        "remark-gfm": "^4.0.1",
         "remark-mdx": "^3.1.0",
         "remark-parse": "^11.0.0",
         "remark-stringify": "^11.0.0",
@@ -508,7 +508,7 @@
         "inject-markdown": "bin.mjs"
       },
       "engines": {
-        "node": ">=18"
+        "node": ">=20"
       }
     },
     "node_modules/is-alphabetical": {
diff --git a/package.json b/package.json
index a99caf3..cca563b 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
     "node": ">=18"
   },
   "dependencies": {
-    "inject-markdown": "^3.1.4"
+    "inject-markdown": "^4.0.0"
   },
   "devDependencies": {
     "prettier": "^3.6.2"