diff --git a/build-constraints.yaml b/build-constraints.yaml
index a1580bc0..670779f7 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -673,9 +673,7 @@ packages:
         - uri-encode
 
     "Simon Michael <simon@joyful.com> @simonmichael":
-        # 2.12.1 testsuite http://bugs.darcs.net/issue2507
-        # https://github.com/fpco/stackage/pull/1848
-        #- darcs
+        - darcs
         - hledger
         - hledger-lib
         # - hledger-ui