--- a/etc/settings Sun Jan 24 16:37:46 2021 +0100+++ b/etc/settings Sun Jan 24 16:38:00 2021 +0100@@ -159,7 +159,7 @@ ISABELLE_STACK_ROOT="$USER_HOME/.stack"-ISABELLE_STACK_RESOLVER="lts-16.12"+ISABELLE_STACK_RESOLVER="lts-16.31" ISABELLE_GHC_VERSION="ghc-8.8.4"