diff --git a/build-constraints.yaml b/build-constraints.yaml
index d545c695..bf88496c 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4001,6 +4001,10 @@ packages:
         - text-show < 3.7.3
         - text-show-instances < 3.6.4
 
+        # https://github.com/fpco/stackage/issues/3494
+        - hledger-lib < 1.9
+        - hledger < 1.9
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of