diff --git a/build-constraints.yaml b/build-constraints.yaml
index 47c87262..21a72b44 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -991,6 +991,7 @@ packages:
         - hslua
         # - idris # bounds: safe
         - xmonad-contrib
+        - shelly
 
         # - cairo # via gtk2hs-buildtools: via hashtables: bounds: vector
         # - gio # via gtk2hs-buildtools: via hashtables: bounds: vector
@@ -1991,8 +1992,7 @@ packages:
         - titlecase
 
     "Mark Fine <mark.fine@gmail.com> @markfine":
-        []
-        # - postgresql-schema # BLOCKED shelly GHC 8.0.2
+        - postgresql-schema
         # - sbp # build failure
 
     "Jinjing Wang <nfjinjing@gmail.com> @nfjinjing":
@@ -3098,9 +3098,6 @@ skipped-tests:
     # re-enable if requested.
     - postgresql-binary # https://github.com/nikita-volkov/postgresql-binary/issues/6#issuecomment-243063139
 
-    # BLOCKED shelly GHC 8.0.2
-    - c2hs
-
     # directory 1.3
     - machines
     - xmlhtml