diff --git a/build-constraints.yaml b/build-constraints.yaml
index 47842f50..0798f7ef 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3266,6 +3266,9 @@ packages:
         - brick < 0.19
         - hledger-iadd < 1.2.2
 
+        # https://github.com/fpco/stackage/issues/2621
+        - hjsonpointer < 1.2.0
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of