diff --git a/build-constraints.yaml b/build-constraints.yaml
index 3dc05878..1638173a 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2270,14 +2270,14 @@ packages:
         - friday-juicypixels < 0
         - hbeanstalk < 0 # sClose not in scope
         - hedis
-        - hprotoc < 0 # compilation failure
+        - hprotoc
         - hsyslog-udp < 0
         - iso3166-country-codes
         - iso639
         - monoidal-containers < 0 # via base-4.13.0.0
         - murmur-hash
-        - protocol-buffers < 0 # MonadFail
-        - protocol-buffers-descriptor < 0 # via protocol-buffers
+        - protocol-buffers
+        - protocol-buffers-descriptor
         - regex-pcre
         - string-class
         - string-combinators