diff --git a/recipes/viennarna/meta.yaml b/recipes/viennarna/meta.yaml
index 8af20366790d1..d99a5bb0f0569 100644
--- a/recipes/viennarna/meta.yaml
+++ b/recipes/viennarna/meta.yaml
@@ -6,7 +6,7 @@ package:
   version: {{ version }}
 
 build:
-  number: 0
+  number: 1
 
 source:
   url: https://www.tbi.univie.ac.at/RNA/download/sourcecode/2_4_x/ViennaRNA-{{ version }}.tar.gz