diff --git a/build-constraints.yaml b/build-constraints.yaml
index 2fc79f42..f0ac4915 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -328,7 +328,7 @@ packages:
         - hjsmin
         - language-javascript
         - Strafunski-StrategyLib
-        # - HaRe # BLOCKED ghc-mod < 5.8
+        - HaRe
 
     "Alfredo Di Napoli <alfredo.dinapoli@gmail.com> @adinapoli":
         - mandrill