diff --git a/package-lock.json b/package-lock.json
index b19f14b4..6b12379d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5,7 +5,7 @@
   "packages": {
     "": {
       "devDependencies": {
-        "@antora/collector-extension": "^1.0.0-alpha.3",
+        "@antora/collector-extension": "^1.0.0-alpha.4",
         "@antora/lunr-extension": "^1.0.0-alpha.8",
         "antora": "^3.1.7"
       },
@@ -46,9 +46,9 @@
       }
     },
     "node_modules/@antora/collector-extension": {
-      "version": "1.0.0-alpha.3",
-      "resolved": "https://registry.npmjs.org/@antora/collector-extension/-/collector-extension-1.0.0-alpha.3.tgz",
-      "integrity": "sha512-0yUc+lMVKzXUfOyelGjVO4C2h8ltzYupyWsjymfBPH251Noj9pSlAuzbldjlp7h92dJakgsz+NsLTHIj6lArbQ==",
+      "version": "1.0.0-alpha.4",
+      "resolved": "https://registry.npmjs.org/@antora/collector-extension/-/collector-extension-1.0.0-alpha.4.tgz",
+      "integrity": "sha512-yVQVWezO7bhiat6EvVCGqQIBKVAy997GVRLu4TW7uxN878MRC6yXDNHVsaWPaCpVIdf8MaNDebklNh4luXeuPg==",
       "dev": true,
       "dependencies": {
         "@antora/expand-path-helper": "~2.0",
diff --git a/package.json b/package.json
index c764b8b8..e791a527 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "devDependencies": {
-    "@antora/collector-extension": "^1.0.0-alpha.3",
+    "@antora/collector-extension": "^1.0.0-alpha.4",
     "@antora/lunr-extension": "^1.0.0-alpha.8",
     "antora": "^3.1.7"
   },