diff --git a/build-constraints.yaml b/build-constraints.yaml
index e6d35224..11d1fab7 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -6122,6 +6122,7 @@ packages:
         - katip-scalyr-scribe < 0 # tried katip-scalyr-scribe-0.1.0.1, but its *library* does not support: katip-0.8.5.0
         - ki < 0 # tried ki-0.2.0.1, but its *library* does not support: base-4.15.0.0
         - kleene < 0 # tried kleene-0.1, but its *library* does not support: base-4.15.0.0
+        - koji < 0 # tried koji-0.0.2, but its *library* requires the disabled package: haxr
         - kraken < 0 # tried kraken-0.1.0, but its *library* does not support: base-4.15.0.0
         - lambdabot-core < 0 # tried lambdabot-core-5.3.0.2, but its *library* requires the disabled package: dependent-sum
         - lambdabot-core < 0 # tried lambdabot-core-5.3.0.2, but its *library* requires the disabled package: dependent-sum-template