diff --git a/build-constraints.yaml b/build-constraints.yaml
index 69cc8c4a..ff0c6871 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -7498,6 +7498,7 @@ expected-test-failures:
     - headroom
     - hledger-lib
     - kawhi
+    - perf
     - xml-indexed-cursor
     - yesod-paginator
 
@@ -7524,6 +7525,7 @@ expected-test-failures:
     - multiarg
     - murmur3
     - protobuf
+    - snappy # Could not find module ‘Functions’
     - thread-supervisor
     - type-map
     - typecheck-plugin-nat-simple