diff --git a/build-constraints.yaml b/build-constraints.yaml
index 572d1744..72e0f362 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2690,7 +2690,7 @@ packages:
         - numhask-range
         # - perf # https://github.com/tonyday567/perf/issues/2
         - online
-        # - chart-unit # https://github.com/tonyday567/chart-unit/issues/13
+        - chart-unit
 
     "Iphigenia Df <iphydf@gmail.com> @iphydf":
         - data-msgpack