diff --git a/build-constraints.yaml b/build-constraints.yaml
index cc30a8643..a76bdeeea 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2669,6 +2669,7 @@ packages:
 
         # https://github.com/fpco/stackage/issues/2108
         - pipes < 4.3.0
+        - pipes-safe < 2.2.5
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of