diff --git a/build-constraints.yaml b/build-constraints.yaml
index 8d2d3b35..f7a1ed73 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1367,6 +1367,9 @@ expected-test-failures:
     # https://github.com/haskell-servant/servant/issues/68
     - servant-client
 
+    # https://github.com/ekmett/parsers/issues/47
+    - parsers
+
 # Haddocks which are expected to fail. Same concept as expected test failures.
 expected-haddock-failures:
     # https://github.com/acw/bytestring-progress/issues/4