diff --git a/composer.json b/composer.json
index e60ec320668c44e1a4016de35a1d1a42b5a31a69..1ba6f514d56d933a601d15985a4702006747feb2 100644
--- a/composer.json
+++ b/composer.json
@@ -118,7 +118,7 @@
         "wpackagist-plugin/event-organiser": "3.12.3",
         "noblogs/ai-authenticate-rest-api-plugin": "0.0.4",
         "wpackagist-plugin/multisite-custom-css": "1.0",
-        "wpackagist-plugin/activitypub": "0.17.0",
+        "wpackagist-plugin/activitypub": "1.0.0",
         "wpackagist-plugin/gallery-block-lightbox": "^1.13",
         "wpackagist-plugin/unconfirmed": "1.3.5",
         "noblogs/wp-mat": "0.1.2"
diff --git a/composer.lock b/composer.lock
index 0cbb4328b92940d4939be77fc55858998575e813..74eedaa97d3a511a552761366630c28c9cd1db8f 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": "e52d8fc4e532162e66fbb14ed8859ed5",
+    "content-hash": "762724e4490e0803e6585b180359450e",
     "packages": [
         {
             "name": "bjornjohansen/wplang",
@@ -862,15 +862,15 @@
         },
         {
             "name": "wpackagist-plugin/activitypub",
-            "version": "0.17.0",
+            "version": "1.0.0",
             "source": {
                 "type": "svn",
                 "url": "https://plugins.svn.wordpress.org/activitypub/",
-                "reference": "tags/0.17.0"
+                "reference": "tags/1.0.0"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://downloads.wordpress.org/plugin/activitypub.0.17.0.zip"
+                "url": "https://downloads.wordpress.org/plugin/activitypub.1.0.0.zip"
             },
             "require": {
                 "composer/installers": "^1.0 || ^2.0"
@@ -2005,5 +2005,5 @@
         "php": ">=7.1"
     },
     "platform-dev": [],
-    "plugin-api-version": "2.2.0"
+    "plugin-api-version": "2.6.0"
 }