diff --git a/stable/postgresql/Chart.yaml b/stable/postgresql/Chart.yaml
index 2622e92a6c..5a5a084f75 100644
--- a/stable/postgresql/Chart.yaml
+++ b/stable/postgresql/Chart.yaml
@@ -1,6 +1,6 @@
 apiVersion: v1
 name: postgresql
-version: 6.5.5
+version: 6.5.6
 appVersion: 11.5.0
 description: Chart for PostgreSQL, an object-relational database management system (ORDBMS) with an emphasis on extensibility and on standards-compliance.
 keywords:
diff --git a/stable/postgresql/values-production.yaml b/stable/postgresql/values-production.yaml
index afc014f2c7..6eca6546cd 100644
--- a/stable/postgresql/values-production.yaml
+++ b/stable/postgresql/values-production.yaml
@@ -385,4 +385,4 @@ metrics:
     successThreshold: 1
 
 # Define custom environment variables to pass to the image here
-extraEnv: {}
+extraEnv: []
diff --git a/stable/postgresql/values.yaml b/stable/postgresql/values.yaml
index cb7e5a0f6a..0f63ccd673 100644
--- a/stable/postgresql/values.yaml
+++ b/stable/postgresql/values.yaml
@@ -385,4 +385,4 @@ metrics:
     successThreshold: 1
 
 # Define custom environment variables to pass to the image here
-extraEnv: {}
+extraEnv: []