diff --git a/README.md b/README.md
index 45eaeb9..af8b88e 100644
--- a/README.md
+++ b/README.md
@@ -4,9 +4,10 @@ Official plugins and script runtimes for [owlry](https://somegit.dev/Owlibou/owl
 
 ## Plugins
 
+> **Note:** Calculator, converter, and system actions are now built into `owlry-core` (>= 1.2.0) and no longer require separate plugin packages.
+
 | Plugin | Description |
 |--------|-------------|
-| calculator | Mathematical expression evaluation |
 | bookmarks | Browser bookmark search (Firefox, Chrome) |
 | clipboard | Clipboard history via cliphist |
 | emoji | Emoji picker |
@@ -15,7 +16,6 @@ Official plugins and script runtimes for [owlry](https://somegit.dev/Owlibou/owl
 | pomodoro | Pomodoro timer widget |
 | scripts | User script launcher |
 | ssh | SSH host quick-connect |
-| system | Power and session management |
 | systemd | systemd user service control |
 | weather | Weather widget |
 | websearch | Web search with configurable engines |