diff --git a/build-constraints.yaml b/build-constraints.yaml
index 167deaaa..38b8249f 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -118,8 +118,7 @@ packages:
         - cartel
         - Earley
         - ofx
-        # https://github.com/fpco/stackage/pull/1485
-        # GHC 8 - pinchot
+        - pinchot
         # GHC 8 - validation
 
     "Neil Mitchell":
@@ -731,7 +730,7 @@ packages:
         # GHC 8 - file-location
         - fuzzcheck
         - haddock-api
-        # GHC 8 - here
+        - here
         - hlibgit2
         # GHC 8 - gitlib-libgit2
         - hostname-validate
@@ -1427,11 +1426,10 @@ packages:
         # GHC 8 - xml-conduit-parse
 
     "Kostiantyn Rybnikov <k-bx@k-bx.com> @k-bx":
-        # https://github.com/k-bx/protocol-buffers/issues/38
-        # GHC 8 - protocol-buffers
-        # GHC 8 - hprotoc
-        # GHC 8 - protocol-buffers-descriptor
-        # GHC 8 - ekg-core
+        - protocol-buffers
+        - hprotoc
+        - protocol-buffers-descriptor
+        - ekg-core
         - digits
         - hbeanstalk
         - iso3166-country-codes