diff --git a/gnu/packages/astronomy.scm b/gnu/packages/astronomy.scm
index c31aaa26b6..aee4bd34b6 100644
--- a/gnu/packages/astronomy.scm
+++ b/gnu/packages/astronomy.scm
@@ -694,7 +694,8 @@ (define-public python-ads
         (base32 "18aizbsmhwz99flz8n101mi0n0lk3m3qqzfvmxrmjwqvydfypjml"))))
     (build-system pyproject-build-system)
     (native-inputs
-     (list python-httpretty))
+     (list nss-certs-for-test
+           python-httpretty))
     (propagated-inputs
      (list python-mock
            python-requests