diff --git a/build-constraints.yaml b/build-constraints.yaml
index 83ae1c04..45112401 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3232,6 +3232,7 @@ expected-test-failures:
     - makefile
 
     # Misc.
+    - aeson # https://github.com/fpco/stackage/issues/2291
     - distributed-process-supervisor # # https://github.com/haskell-d
     - ghcid # Weird conflicts with sandboxingistributed/distributed-process-supervisor/issues/1
     - haskell-docs # GHC bug
@@ -3239,6 +3240,7 @@ expected-test-failures:
     - snap-core # https://github.com/snapframework/snap-core/issues/26
     - stm-delay # https://github.com/joeyadams/haskell-stm-delay/issues/5
 
+
 # end of expected-test-failures
 
 # Benchmarks which are known not to build. Note that, currently we do not run