diff --git a/hledger-lib/Hledger/Read.hs b/hledger-lib/Hledger/Read.hs
index e6e66f5c8..6722e2cce 100644
--- a/hledger-lib/Hledger/Read.hs
+++ b/hledger-lib/Hledger/Read.hs
@@ -53,7 +53,7 @@ module Hledger.Read (
 --- ** imports
 import qualified Control.Exception as C
 import Control.Monad (unless, when)
-import "mtl" Control.Monad.Except (ExceptT(..), runExceptT, liftIO)
+import "mtl" Control.Monad.Except (ExceptT(..), runExceptT, liftIO, MonadIO)
 import Data.Default (def)
 import Data.Foldable (asum)
 import Data.List (group, sort, sortBy)
diff --git a/stack.yaml b/stack.yaml
deleted file mode 100644
index d832ca2de..000000000
--- a/stack.yaml
+++ /dev/null
@@ -1,39 +0,0 @@
-# stack build plan using GHC 9.0.2
-
-nix:
-  pure: false
-  packages: [perl gmp ncurses zlib]
-
-resolver: nightly-2022-03-03
-
-# for https://gitlab.haskell.org/ghc/ghc/-/issues/20592 on mac m1 (adjust path if needed)
-extra-include-dirs:
-- /Library/Developer/CommandLineTools/SDKs/MacOSX12.1.sdk/usr/include/ffi
-
-packages:
-- hledger-lib
-- hledger
-- hledger-ui
-- hledger-web
-
-#extra-deps:
-# for hledger-lib:
-# for hledger:
-# for hledger-ui:
-# for hledger-web:
-# for Shake.hs:
-
-# for precise profiling, per https://www.tweag.io/posts/2020-01-30-haskell-profiling.html:
-# apply-ghc-options: everything
-# rebuild-ghc-options: true
-# stack build --profile --ghc-options="-fno-prof-auto"
-
-# tell GHC to write hie files, eg for weeder. Rumoured to be slow.
-# ghc-options:
-#   "$locals": -fwrite-ide-info
-
-# ghc-options:
-#   "$locals": -ddump-timings
-#  "$targets": -Werror
-#  "$everything": -O2
-#  some-package: -DSOME_CPP_FLAG
diff --git a/stack.yaml b/stack.yaml
new file mode 120000
index 000000000..dd01656fa
--- /dev/null
+++ b/stack.yaml
@@ -0,0 +1 @@
+stack9.2.yaml
\ No newline at end of file