diff --git a/build-constraints.yaml b/build-constraints.yaml
index ea889051..2f075479 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2443,7 +2443,7 @@ packages:
         - hapistrano
         - hspec-golden
         - inflections
-        - stache
+        - stache < 2.3.1 # https://github.com/commercialhaskell/stackage/issues/6217
         - scalendar
 
     "Sergey Alirzaev <zl29ah@gmail.com> @l29ah":