diff --git a/build-constraints.yaml b/build-constraints.yaml
index 1a40e883..486fc16b 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2842,7 +2842,7 @@ packages:
 
     "Michal Konecny <mikkonecny@gmail.com> @michalkonecny":
         - hmpfr
-        # - mixed-types-num # GHC 8.2.1
+        - mixed-types-num
 
     "Bartosz Nitka <niteria@gmail.com> @niteria":
         - oeis