diff --git a/README.rst b/README.rst
index 3a9d931a4..cf6778e0a 100644
--- a/README.rst
+++ b/README.rst
@@ -96,7 +96,7 @@ Constraints
 -----------
 
 * Only maintained 3rd party libraries are used.
-* Uses PostgreSQL everywhere (9.4 - 12.3)
+* Uses PostgreSQL everywhere (10.16 - 13.2)
 * Environment variables for configuration (This won't work with Apache/mod_wsgi).
 
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