diff --git a/build-constraints.yaml b/build-constraints.yaml
index 2e38c274..5d473a1e 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3169,6 +3169,10 @@ packages:
         # section as wreq-0.5.2 makes tests compile properly
         - wreq < 0.5.2
 
+        # https://github.com/fpco/stackage/issues/3159
+        - megaparsec < 6.4
+        - mmark < 0.0.4.1
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of