diff --git a/hades/values-dev.yaml b/hades/values-dev.yaml
index 2466999..c7d82a7 100644
--- a/hades/values-dev.yaml
+++ b/hades/values-dev.yaml
@@ -66,27 +66,25 @@ service:
   targetPort: 8080
 
 # MySQL configuration for dev environments
+# Uses WSO2 MySQL chart (flat structure, not Bitnami nested structure)
 mysql:
   enabled: true
-  image:
-    registry: docker.io/bitnamilegacy
-  auth:
-    rootPassword: "dev-root-password"
-    database: "hadesdb"
-    username: "hades_user"
-    password: "dev-hades-password"
-  primary:
-    persistence:
-      enabled: false  # Use emptyDir for faster cleanup in test environments
-    resources:
-      limits:
-        cpu: 500m
-        memory: 512Mi
-      requests:
-        cpu: 250m
-        memory: 256Mi
-  metrics:
-    enabled: false
+  image: "bitnamilegacy/mysql"
+  imageTag: "5.7"
+  mysqlRootPassword: "dev-root-password"
+  mysqlDatabase: "hadesdb"
+  mysqlUser: "hades_user"
+  mysqlPassword: "dev-hades-password"
+  persistence:
+    enabled: true
+    size: 5Gi
+  resources:
+    limits:
+      cpu: 500m
+      memory: 512Mi
+    requests:
+      cpu: 250m
+      memory: 256Mi
 
 # Database initialization - disabled by default in dev
 # Enable to run SQL migrations from sql/ directory