diff --git a/build-constraints.yaml b/build-constraints.yaml
index 36786155..c37a994f 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -9,6 +9,9 @@ cabal-format-version: "3.0"
 
 # Constraints for brand new builds
 packages:
+    "Christian Charukiewicz <c.charukiewicz@gmail.com> @charukiewicz":
+        - isbn
+
     "Ashlynn Anderson <maintainer@pea.sh> @lambdadog":
         - proto3-wire