diff --git a/build-constraints.yaml b/build-constraints.yaml
index 68a51027..0886a714 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -645,8 +645,10 @@ packages:
         - parallel-io
         - text-binary
         - wl-pprint-text
+        - Chart-cairo
+        - ghc-events
 
-    "Michael Sloan <mgsloan@gmail.com":
+    "Michael Sloan <mgsloan@gmail.com>":
         - th-orphans
         - th-reify-many