diff --git a/build-constraints.yaml b/build-constraints.yaml
index 7000b148..206a9b4e 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2692,7 +2692,7 @@ packages:
         - numhask-range
         - perf
         - online
-        # - chart-unit # https://github.com/tonyday567/chart-unit/issues/13
+        - chart-unit
 
     "Iphigenia Df <iphydf@gmail.com> @iphydf":
         - data-msgpack