diff --git a/lambdabot-core.cabal b/lambdabot-core.cabal
--- a/lambdabot-core.cabal
+++ b/lambdabot-core.cabal
@@ -1,11 +1,11 @@
 name:                   lambdabot-core
-version:                5.3.1
+version:                5.3.1.1
 
 license:                GPL
 license-file:           LICENSE
 
 author:                 Don Stewart
-maintainer:             Bertram Felgenhauer <int-e@gmx.de>
+maintainer:             Naïm Favier <n@monade.li>
 
 category:               Development, Web
 synopsis:               Lambdabot core functionality
@@ -19,7 +19,7 @@
 
 build-type:             Simple
 cabal-version:          >= 1.10
-tested-with:            GHC == 8.2.2, GHC == 8.4.4, GHC == 8.6.5, GHC == 8.8.4, GHC == 8.10.4, GHC == 9.0.2, GHC == 9.2.4
+tested-with:            GHC == 8.2.2, GHC == 8.4.4, GHC == 8.6.5, GHC == 8.8.4, GHC == 8.10.4, GHC == 9.0.2, GHC == 9.2.4, GHC == 9.4.5
 
 extra-source-files:     AUTHORS.md
                         COMMENTARY.md
diff --git a/src/Lambdabot/Config.hs b/src/Lambdabot/Config.hs
--- a/src/Lambdabot/Config.hs
+++ b/src/Lambdabot/Config.hs
@@ -2,6 +2,7 @@
 {-# LANGUAGE GADTs #-}
 {-# LANGUAGE ViewPatterns #-}
 {-# LANGUAGE TemplateHaskell #-}
+{-# LANGUAGE TypeOperators #-}
 -- | Extensible configuration system for lambdabot
 --
 -- TODO: there's notthing lambdabot-specific about this, it could be a useful standalone library.
diff --git a/src/Lambdabot/Config/Core.hs b/src/Lambdabot/Config/Core.hs
--- a/src/Lambdabot/Config/Core.hs
+++ b/src/Lambdabot/Config/Core.hs
@@ -1,6 +1,7 @@
 {-# LANGUAGE DeriveDataTypeable #-}
 {-# LANGUAGE GADTs #-}
 {-# LANGUAGE TemplateHaskell #-}
+{-# LANGUAGE TypeOperators #-}
 {-# OPTIONS_GHC -fno-warn-overlapping-patterns #-}
 module Lambdabot.Config.Core
     ( commandPrefixes
@@ -13,7 +14,7 @@
     , lbVersion
     , textWidth
     , uncaughtExceptionHandler
-    
+
     , replaceRootLogger
     , lbRootLoggerPath
     , consoleLogHandle
diff --git a/src/Lambdabot/State.hs b/src/Lambdabot/State.hs
--- a/src/Lambdabot/State.hs
+++ b/src/Lambdabot/State.hs
@@ -1,6 +1,7 @@
 {-# LANGUAGE FlexibleContexts #-}
 {-# LANGUAGE ScopedTypeVariables #-}
 {-# LANGUAGE TypeFamilies #-}
+{-# LANGUAGE TypeOperators #-}
 -- | Support for the LB (LambdaBot) monad
 module Lambdabot.State
     ( -- ** Functions to access the module's state
@@ -8,19 +9,19 @@
     , readMS
     , writeMS
     , modifyMS
-    
+
     -- ** Utility functions for modules that need state for each target.
     , GlobalPrivate -- (global)
     , mkGlobalPrivate
-    
+
     , withPS
     , readPS
     , writePS
-    
+
     , withGS
     , readGS
     , writeGS
-    
+
     -- ** Handling global state
     , readGlobalState
     , writeGlobalState
@@ -51,7 +52,7 @@
 
 class MonadLB m => MonadLBState m where
     type LBState m
-    
+
     -- | Update the module's private state.
     -- This is the preferred way of changing the state. The state will be locked
     -- until the body returns. The function is exception-safe, i.e. even if
@@ -74,8 +75,8 @@
 instance MonadLBState m => MonadLBState (Cmd m) where
     type LBState (Cmd m) = LBState m
     withMS f = do
-        x <- liftWith $ \run -> 
-            withMS $ \st wr -> 
+        x <- liftWith $ \run ->
+            withMS $ \st wr ->
                 run (f st (lift . wr))
         restoreT (return x)
 
@@ -177,7 +178,7 @@
 writeGlobalState = do
     m     <- asks theModule
     mName <- asks moduleName
-    
+
     debugM ("saving state for module " ++ show mName)
     case moduleSerialize m of
         Nothing  -> return ()