diff --git a/build-constraints.yaml b/build-constraints.yaml
index ea18ae7f..61c9b585 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1218,7 +1218,7 @@ packages:
         - hspec-wai-json
         - aeson-qq
         - interpolate
-        - doctest
+        - doctest < 0.25 # https://github.com/commercialhaskell/stackage/issues/7999
         - base-compat
         - vcr