diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4952453..d4abdd0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,8 @@
 # Changelog
 
+## v1.0.2 (2025-02-21)
+ - Explicitly marks `libxml` as a dependency in `composer.json`.
+
 ## v1.0.1 (2025-02-20)
  - Minor documentation updates and fixes.
 
diff --git a/composer.json b/composer.json
index ed2ce1f..64d6ebd 100644
--- a/composer.json
+++ b/composer.json
@@ -15,7 +15,8 @@
 		}
 	},
 	"require": {
-		"php": ">=8.3"
+		"php": ">=8.3",
+		"ext-libxml": "*"
 	},
 	"require-dev": {
 		"mediawiki/mediawiki-codesniffer": "46.0.0",
diff --git a/composer.lock b/composer.lock
index 0c12e85..fc8b6d6 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "a948747abb9dd5c8d231f36865e2c3c0",
+    "content-hash": "bfd522d03f51c11eba26ac25cfc6fe11",
     "packages": [],
     "packages-dev": [
         {
@@ -3119,7 +3119,8 @@
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {
-        "php": ">=8.3"
+        "php": ">=8.3",
+        "ext-libxml": "*"
     },
     "platform-dev": {},
     "plugin-api-version": "2.6.0"