diff --git a/setup.py b/setup.py
index 2eb4b85..b2f91ef 100644
--- a/setup.py
+++ b/setup.py
@@ -729,7 +729,7 @@
         # a release.  Most open source OSes come with one or more
         # versions of BerkeleyDB already installed.
 
-        max_db_ver = (4, 7)
+        max_db_ver = (5, 1)
         min_db_ver = (3, 3)
         db_setup_debug = False   # verbose debug prints from this script?