diff --git a/build-constraints.yaml b/build-constraints.yaml
index 822ca7d8..179a8187 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3110,9 +3110,6 @@ packages:
         # https://github.com/fpco/stackage/issues/3079
         - generic-deriving < 1.12
 
-        # https://github.com/mrkkrp/mmark-ext/issues/5
-        - mmark < 0.0.2.0
-
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of