diff --git a/build-constraints.yaml b/build-constraints.yaml
index 4ac2442b..bffd3b93 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2767,9 +2767,6 @@ packages:
         # https://github.com/fpco/stackage/issues/2207
         - xlsx-tabular < 0.2.1.1
 
-        # https://github.com/eggzilla/RNAlien/issues/8
-        - ClustalParser < 1.2
-
         # https://github.com/tvh/haxl-amazonka/issues/1
         - haxl < 0.5