diff --git a/build-constraints.yaml b/build-constraints.yaml
index fc7a214d..21d00b2b 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4760,6 +4760,9 @@ packages:
       - optics < 0.3
       - optics-vl < 0.2.1
 
+      # https://github.com/commercialhaskell/stackage/issues/5319
+      - protolude < 0.3
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of