diff --git a/changelogs/fragments/481.yml b/changelogs/fragments/481.yml
new file mode 100644
index 0000000..3f26839
--- /dev/null
+++ b/changelogs/fragments/481.yml
@@ -0,0 +1,2 @@
+bugfixes:
+ - grafana - Fixed container postgresql details dashboard query for last completed backup
diff --git a/grafana/containers/postgresql_details.json b/grafana/containers/postgresql_details.json
index b54f304..d38cf82 100644
--- a/grafana/containers/postgresql_details.json
+++ b/grafana/containers/postgresql_details.json
@@ -151,7 +151,7 @@
       "pluginVersion": "7.4.5",
       "targets": [
         {
-          "expr": "min(ccp_backrest_last_incr_backup_time_since_completion_seconds{pg_cluster=\"[[cluster]]\"}, ccp_backrest_last_diff_backup_time_since_completion_seconds{pg_cluster=\"[[cluster]]\"}, ccp_backrest_last_full_backup_time_since_completion_seconds{pg_cluster=\"[[cluster]]\"})",
+          "expr": "min(ccp_backrest_last_incr_backup_time_since_completion_seconds{pg_cluster=\"[[cluster]]\"} or ccp_backrest_last_diff_backup_time_since_completion_seconds{pg_cluster=\"[[cluster]]\"} or ccp_backrest_last_full_backup_time_since_completion_seconds{pg_cluster=\"[[cluster]]\"}) ",
           "format": "time_series",
           "interval": "",
           "intervalFactor": 1,