diff --git a/build-constraints.yaml b/build-constraints.yaml
index d171002e..10703304 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -9,7 +9,7 @@ packages:
         - bzlib-conduit
         - cabal-install
         - cabal-src
-        - case-insensitive
+        - case-insensitivek-
         - classy-prelude-yesod
         - conduit-combinators
         - conduit-extra
@@ -1312,8 +1312,7 @@ packages:
 
     "Kostiantyn Rybnikov <k-bx@k-bx.com> @k-bx":
         - protocol-buffers
-        # Temporary block for: https://github.com/k-bx/protocol-buffers/issues/13
-        # - hprotoc
+        - hprotoc
         - protocol-buffers-descriptor
         - ekg-core
         - digits