diff --git a/doc/dev-notes.txt b/doc/dev-notes.txt
index fce0fdb1..98e9dc17 100644
--- a/doc/dev-notes.txt
+++ b/doc/dev-notes.txt
@@ -108,7 +108,7 @@
      where x.project = c.project and x.jobset = c.jobset and x.job = c.job and x.system = c.system
            and x.id > c.id and r.buildstatus != r2.buildstatus);
 
-* Using PostgreSQL:
+* Using PostgreSQL (version 9.2 or newer is required): 
 
   $ HYDRA_DBI="dbi:Pg:dbname=hydra;" hydra-server