diff --git a/package-lock.json b/package-lock.json
index 51045f0..f8685f0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,17 +1,13 @@
 {
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+  "version": "1.0.9",
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+      "resolved": "https://registry.npmjs.org/@asciidoctor/core/-/core-4.0.11.tgz",
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@@ -576,31 +572,11 @@
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@@ -3883,21 +3833,6 @@
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@@ -5104,11 +5043,6 @@
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         "camelcase": "^5.0.0",
         "decamelize": "^1.2.0"
diff --git a/package.json b/package.json
index f93c799..221cb6a 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
   "description": "",
   "main": "src/index.js",
   "dependencies": {
-    "asciidoctor": "^2.0.3",
+    "asciidoctor": "^4.0.0",
     "jsdom": "^15.2.0",
     "mustache": "^3.1.0",
     "rimraf": "^3.0.0",