diff --git a/build-constraints.yaml b/build-constraints.yaml
index 714fd4f9..47948a7d 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3305,6 +3305,7 @@ packages:
         - massiv-io < 0 # via netpbm
         - massiv-test
         - scheduler
+        - Color
 
     "Hans-Peter Deifel <hpd@hpdeifel.de> @hpdeifel":
         - hledger-iadd