diff --git a/build-constraints.yaml b/build-constraints.yaml
index c3c43225..07592c51 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -304,7 +304,7 @@ packages:
     "Phil de Joux <phil.dejoux@blockscope.com> @philderbeast":
         - siggy-chardust
         - detour-via-sci
-        - hpack-dhall < 0.5.7 # https://github.com/commercialhaskell/stackage/issues/6556
+        - hpack-dhall
 
     "Matthew Ahrens <matt.p.ahrens@gmail.com> @mpahrens":
         - forkable-monad
@@ -7233,9 +7233,6 @@ packages:
         - persistent-qq < 2.12.0.3
         - persistent-test < 2.13.1.3
 
-        # https://github.com/commercialhaskell/stackage/issues/6551
-        - hpack < 0.35
-
         # https://github.com/commercialhaskell/stackage/issues/6569
         - logict < 0.8.0.0