diff --git a/build-constraints.yaml b/build-constraints.yaml
index 9f335137..8375777c 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -6707,6 +6707,9 @@ packages:
       # https://github.com/commercialhaskell/stackage/issues/6125
       - citeproc < 0.4.1
 
+      # https://github.com/commercialhaskell/stackage/issues/6126
+      - doctemplates < 0.10
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of