diff --git a/manifests/db.pp b/manifests/db.pp
index 168add0..9dcf479 100644
--- a/manifests/db.pp
+++ b/manifests/db.pp
@@ -52,7 +52,7 @@ class panko::db (
   include ::panko::deps
 
   validate_re($database_connection,
-    '^(sqlite|mysql(\+pymysql)?|postgresql):\/\/(\S+:\S+@\S+\/\S+)?')
+    '^(sqlite|mysql(\+pymysql)?|postgresql(\+psycopg2)?):\/\/(\S+:\S+@\S+\/\S+)?')
 
   oslo::db { 'panko_config':
     connection     => $database_connection,
diff --git a/releasenotes/notes/postgres-0f2d04def1149954.yaml b/releasenotes/notes/postgres-0f2d04def1149954.yaml
new file mode 100644
index 0000000..a2a13c3
--- /dev/null
+++ b/releasenotes/notes/postgres-0f2d04def1149954.yaml
@@ -0,0 +1,3 @@
+---
+features:
+  - Allow to specify drivername for postgres db