diff --git a/satnogs-db-api-client/setup.cfg b/satnogs-db-api-client/setup.cfg
index d67b098..5bf4e13 100644
--- a/satnogs-db-api-client/setup.cfg
+++ b/satnogs-db-api-client/setup.cfg
@@ -24,7 +24,7 @@ packages = find:
 include_package_data = True
 install_requires =
     urllib3~=1.25.0
-    six~=1.12.0
+    six~=1.15.0
     certifi
     python-dateutil~=2.8.0