diff --git a/build-constraints.yaml b/build-constraints.yaml
index b855dc6a..0ce753ae 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -8000,6 +8000,7 @@ skipped-tests:
     - hpc-codecov # timeouts? https://github.com/commercialhaskell/stackage/issues/5976
     - enum-text # https://github.com/commercialhaskell/stackage/issues/6794
     - sbv # takes more than 4 hours for a single test suite
+    - json-rpc  # flaky
 
     # Wontfix. The maintainer doesn't want to keep test dependencies
     # up to date or be notified about it, or doesn't want stackage to