diff --git a/build-constraints.yaml b/build-constraints.yaml
index ac815925..8c7c305c 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3238,6 +3238,9 @@ packages:
         - haddock < 2.17.4
         - haddock-api < 2.17.4
 
+        # https://github.com/fpco/stackage/issues/2566
+        - prettyprinter < 1.1
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of