diff --git a/build-constraints.yaml b/build-constraints.yaml
index bb29f124..6e8af73a 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -172,8 +172,7 @@ packages:
         - hjsmin
         - language-javascript
         - Strafunski-StrategyLib
-        # - https://github.com/fpco/stackage/pull/906
-        # - HaRe
+        - HaRe
 
     "Alfredo Di Napoli <alfredo.dinapoli@gmail.com>":
         - mandrill
@@ -2017,6 +2016,9 @@ skipped-tests:
     # Waiting for hackage release, was fixed in https://github.com/bos/aeson/commit/f012d0936808224d82150292c2b866fc5d1c182c
     - aeson
 
+    # - https://github.com/fpco/stackage/pull/906
+    - HaRe
+
     # https://github.com/haskell/zlib/issues/2
     - zlib