diff --git a/composer.json b/composer.json
index 8c531c8f3a62e04731eccc22cd2bec679798182d..eb98f104a5ad072d0ac0ad5e4614d73c44e0eb53 100644
--- a/composer.json
+++ b/composer.json
@@ -127,7 +127,7 @@
         "wpackagist-plugin/event-organiser": "3.12.2",
         "noblogs/ai-authenticate-rest-api-plugin": "0.0.3",
         "wpackagist-plugin/multisite-custom-css": "1.0",
-        "wpackagist-plugin/activitypub": "0.16.2",
+        "wpackagist-plugin/activitypub": "0.17.0",
         "wpackagist-plugin/memcached": "4.0.0"
     },    
     "extra": {
diff --git a/composer.lock b/composer.lock
index 47dbfdd3695a738a56fd5deded50feb8307b9991..559dcc444cf298ec2fc1ec36dac6cdfe88351d30 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": "5efe76743ba8669b3dde91ed87e4a224",
+    "content-hash": "a8c108ee36229136b0e604011baf6972",
     "packages": [
         {
             "name": "bjornjohansen/wplang",
@@ -830,15 +830,15 @@
         },
         {
             "name": "wpackagist-plugin/activitypub",
-            "version": "0.16.2",
+            "version": "0.17.0",
             "source": {
                 "type": "svn",
                 "url": "https://plugins.svn.wordpress.org/activitypub/",
-                "reference": "tags/0.16.2"
+                "reference": "tags/0.17.0"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://downloads.wordpress.org/plugin/activitypub.0.16.2.zip"
+                "url": "https://downloads.wordpress.org/plugin/activitypub.0.17.0.zip"
             },
             "require": {
                 "composer/installers": "^1.0 || ^2.0"