diff --git a/changelog.d/memleak.fix b/changelog.d/memleak.fix
new file mode 100644
index 000000000..2465921c0
--- /dev/null
+++ b/changelog.d/memleak.fix
@@ -0,0 +1 @@
+Fix a memory leak caused by Websocket connections that would not enter a state where a full garbage collection run could be triggered.
diff --git a/lib/pleroma/web/endpoint.ex b/lib/pleroma/web/endpoint.ex
index 51a77ed60..2e2104904 100644
--- a/lib/pleroma/web/endpoint.ex
+++ b/lib/pleroma/web/endpoint.ex
@@ -14,7 +14,8 @@ defmodule Pleroma.Web.Endpoint do
     websocket: [
       path: "/",
       compress: false,
-      error_handler: {Pleroma.Web.MastodonAPI.WebsocketHandler, :handle_error, []}
+      error_handler: {Pleroma.Web.MastodonAPI.WebsocketHandler, :handle_error, []},
+      fullsweep_after: 20
     ]
   )
 
@@ -27,7 +28,8 @@ defmodule Pleroma.Web.Endpoint do
       ],
       timeout: 60_000,
       transport_log: false,
-      compress: false
+      compress: false,
+      fullsweep_after: 20
     ],
     longpoll: false
   )