diff --git a/build-constraints.yaml b/build-constraints.yaml
index 8a8a9341..fab83880 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -686,7 +686,7 @@ packages:
         - Genbank
         - RNAlien
         - Taxonomy
-        - TaxonomyTools
+        # - TaxonomyTools # build failure
         - ViennaRNAParser
 
     "Silk <code@silk.co>":