diff --git a/build-constraints.yaml b/build-constraints.yaml
index 6adcb5c8..7bb04603 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -987,6 +987,7 @@ packages:
         - regex-applicative-text
         - servant-swagger-ui
         - servant-yaml
+        - singleton-bool
         - spdx
         - these
         - time-parsers