diff --git a/plugins/Fediverse/activitypub.py b/plugins/Fediverse/activitypub.py
index 78bece3c8..5924eb5e5 100644
--- a/plugins/Fediverse/activitypub.py
+++ b/plugins/Fediverse/activitypub.py
@@ -90,7 +90,7 @@ def sandbox(f):
                 f,
                 *args,
                 timeout=10,
-                heap_size=100 * 1024 * 1024,
+                heap_size=200 * 1024 * 1024,
                 pn="Fediverse",
                 cn=f.__name__,
                 **kwargs