@@ -12,8 +12,8 @@ jobs:
1212 keys:
1313 - dependency-cache
1414 - run: apt-get update && apt-get install -y libpq-dev xz-utils make
15− - run: stack upgrade && stack update
16− - run: stack build
15+ - run: stack setup && stack upgrade && stack update
16+ - run: stack build --resolver ghc-8.4.3
1717 - run: stack test
1818 - run: stack haddock
1919 - save_cache: