diff --git a/build-constraints.yaml b/build-constraints.yaml
index 87778d90..331faaee 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1892,6 +1892,7 @@ packages:
         # https://github.com/fpco/stackage/issues/1118
         - protocol-buffers < 2.2
         - protocol-buffers-descriptor < 2.2
+        - hprotoc < 2.2
 
 # end of packages