diff --git a/build-constraints.yaml b/build-constraints.yaml
index 883e5f93..1b0a6d1f 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2079,9 +2079,7 @@ packages:
         - unix-bytestring
 
     "Carlo Hamalainen <carlo@carlo-hamalainen.net> @carlohamalainen":
-        # https://github.com/fpco/stackage/pull/1315
-        #- ghc-imported-from
-        []
+        - ghc-imported-from
 
     "Fraser Tweedale <frase@frase.id.au> @frasertweedale":
         - jose
@@ -2169,6 +2167,9 @@ packages:
         - dejafu < 0.3
         - async-dejafu < 0.1.1
 
+        # https://github.com/fpco/stackage/issues/1343
+        - pipes-transduce < 0.3.4.0
+
 # end of packages