diff --git a/meta.yaml b/meta.yaml
index 7cb2d3d4ea9fa5f3976e29c346406ecc792e4f02..9ba59cda46f818a409baf38402073268afec374c 100644
--- a/meta.yaml
+++ b/meta.yaml
@@ -27,6 +27,6 @@ requirements:
   run:
    - tk       8.6.*
    - python   3.7.*
-   - zlib     1.2.*
    - openblas 0.3.*
-   - boost    1.58
+   - zlib     >=1.2.*
+   - boost    >=1.58