diff --git a/build-constraints.yaml b/build-constraints.yaml
index 63d15832..0c9f3feb 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -953,7 +953,7 @@ packages:
         - hspec-wai-json
         - aeson-qq
         - interpolate
-        - doctest
+        - doctest < 0.17 # https://github.com/commercialhaskell/stackage/issues/5406
         - base-compat
 
     "Mario Blazevic <blamario@yahoo.com> @blamario":