diff --git a/build-constraints.yaml b/build-constraints.yaml
index cf2eacb1..74cc1a57 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -14,7 +14,7 @@ packages:
     "Matthew Ahrens <matt.p.ahrens@gmail.com> @mpahrens":
         - forkable-monad
         - butter
-        
+
     "Iris Ward <aditu.venyhandottir@gmail.com> @AdituV":
         - typenums
 
@@ -4010,6 +4010,7 @@ expected-test-failures:
     - camfort # 0.900 https://github.com/camfort/camfort/issues/41
     - crypto-pubkey # https://github.com/vincenthz/hs-crypto-pubkey/issues/23
     - cubicbezier # https://github.com/kuribas/cubicbezier/issues/3
+    - doctest-discover # 0.1.0.9 https://github.com/karun012/doctest-discover/issues/22
     - ghc-events # https://github.com/haskell/ghc-events/issues/9
     - ghc-syb-utils # https://github.com/nominolo/ghc-syb/issues/18
     - git-vogue # https://github.com/christian-marie/git-vogue/issues/103