diff --git a/build-constraints.yaml b/build-constraints.yaml
index 737ba95c..68105d17 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -5550,6 +5550,12 @@ skipped-tests:
     - xml-conduit-parse
     - yesod-test
 
+    # Fails to build with GHC 9.0.1
+    - sydtest-servant  # https://github.com/commercialhaskell/stackage/issues/5901
+    - sydtest-persistent-sqlite # https://github.com/commercialhaskell/stackage/issues/5902
+    - genvalidity-persistent # https://github.com/commercialhaskell/stackage/issues/5903
+    - Color # https://github.com/commercialhaskell/stackage/issues/5904
+
     # Transitive outdated dependencies
     # These can also be checked for updates periodically.
     - options # ansi-terminal-0.8 via chell