From d75ab533281d40496d15c010b347414c86e0323f Mon Sep 17 00:00:00 2001
From: Mario Lang <mlang@blind.guru>
Date: Fri, 23 Jun 2023 01:05:22 +0200
Subject: [PATCH] lts-21.0

---
 src/Game/Chess/PGN.hs | 1 +
 src/Game/Chess/SAN.hs | 1 +
 stack.yaml            | 2 +-
 3 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/Game/Chess/PGN.hs b/src/Game/Chess/PGN.hs
index 1f16c7a..d106421 100644
--- a/src/Game/Chess/PGN.hs
+++ b/src/Game/Chess/PGN.hs
@@ -11,6 +11,7 @@
 {-# LANGUAGE TemplateHaskell            #-}
 {-# LANGUAGE TupleSections              #-}
 {-# LANGUAGE TypeFamilies               #-}
+{-# LANGUAGE TypeOperators              #-}
 {-# LANGUAGE ViewPatterns               #-}
 {-|
 Module      : Game.Chess.PGN
diff --git a/src/Game/Chess/SAN.hs b/src/Game/Chess/SAN.hs
index 22f3137..9076b2a 100644
--- a/src/Game/Chess/SAN.hs
+++ b/src/Game/Chess/SAN.hs
@@ -7,6 +7,7 @@
 {-# LANGUAGE PolyKinds           #-}
 {-# LANGUAGE ScopedTypeVariables #-}
 {-# LANGUAGE TupleSections       #-}
+{-# LANGUAGE TypeOperators       #-}
 {-# LANGUAGE ViewPatterns        #-}
 {-|
 Module      : Game.Chess.SAN
diff --git a/stack.yaml b/stack.yaml
index eeeb3d6..264e9b1 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -1,4 +1,4 @@
-resolver: lts-20.8
+resolver: lts-21.0
 packages:
 - .
 flags: