diff --git a/docker-jans-persistence-loader/scripts/upgrade.py b/docker-jans-persistence-loader/scripts/upgrade.py
index 8f359b12f2a..86962ad4000 100644
--- a/docker-jans-persistence-loader/scripts/upgrade.py
+++ b/docker-jans-persistence-loader/scripts/upgrade.py
@@ -369,9 +369,7 @@ def update_scripts_entries(self):
             else:
                 props = agama_entry.attrs["jansConfProperty"]
 
-            if self.backend.type != "couchbase":
-                # try converting to mapping
-                props = [json.loads(prop) for prop in props]
+            props = [json.loads(prop) for prop in props]
 
             # filter out unwanted properties
             new_props = [
@@ -380,8 +378,7 @@ def update_scripts_entries(self):
             ]
 
             if new_props != props:
-                if self.backend.type != "couchbase":
-                    new_props = [json.dumps(prop) for prop in new_props]
+                new_props = [json.dumps(prop) for prop in new_props]
 
                 if self.backend.type == "sql" and self.backend.client.dialect == "mysql":
                     agama_entry.attrs["jansConfProperty"]["v"] = new_props