diff --git a/radioconda.yaml b/radioconda.yaml
index 011d913..9cb05d9 100644
--- a/radioconda.yaml
+++ b/radioconda.yaml
@@ -17,6 +17,7 @@ dependencies:
   - bladerf
   - digital_rf
   - codec2
+  - ephem
   - gnss-sdr # [unix]
   - gnuradio 3.10.*
   - gnuradio-adsb