diff --git a/astroquery/vamdc/core.py b/astroquery/vamdc/core.py
index 56222ac04b..799ad8029e 100644
--- a/astroquery/vamdc/core.py
+++ b/astroquery/vamdc/core.py
@@ -131,5 +131,5 @@ def query_molecule(self, molecule_name, chem_re_flags=0, cache=True):
 try:
     Vamdc = VamdcClass()
 except ImportError:
-    log.warn("vamdclib could not be imported; the vamdc astroquery module will not work")
+    log.warning("vamdclib could not be imported; the vamdc astroquery module will not work")
     Vamdc = VamdcClass(doimport=False)