diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 73c866a..64b5138 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -60,6 +60,7 @@ jobs:
           --enable-benchmarks
           --ghc-options="-Werror -Wall"
       - run: cabal update
+      - run: cabal outdated --exit-code
       - run: cabal freeze
       - run: cabal build
       - run: cabal test