diff --git a/maintainers/scripts/haskell/update-stackage.sh b/maintainers/scripts/haskell/update-stackage.sh
index 02559e16572b..cd5f1160a90f 100755
--- a/maintainers/scripts/haskell/update-stackage.sh
+++ b/maintainers/scripts/haskell/update-stackage.sh
@@ -33,7 +33,7 @@ fi
 
 # Stackage solver to use, LTS or Nightly
 # (should be capitalized like the display name)
-SOLVER=LTS
+SOLVER=Nightly
 # Stackage solver verson, if any. Use latest if empty
 VERSION=
 TMP_TEMPLATE=update-stackage.XXXXXXX