diff --git a/build-constraints.yaml b/build-constraints.yaml
index f7921ac4..3a8348e3 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1600,8 +1600,7 @@ packages:
     "Nickolay Kudasov <nickolay.kudasov@gmail.com> @fizruk":
         - http-api-data
         - smsaero
-        # aeson < 0.10
-        # - swagger2
+        - swagger2
 
     "Jared Tobin <jared@jtobin.ca> @jtobin":
         - mwc-probability