diff --git a/build-constraints.yaml b/build-constraints.yaml
index 2b7f713e..b90393fd 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -7876,6 +7876,7 @@ packages:
         - hslua-objectorientation < 2.5
         - hslua-packaging < 2.4
         - hslua-typing < 0.2
+        - pandoc-lua-marshal < 0.3.2 # testsuite see https://github.com/pandoc/pandoc-lua-marshal/issues/14
     # end of Stackage upper bounds
 # end of packages